platinum atomic number

by on December 2, 2020

The chemical symbol for Krypton is Kr. and Gay-Lussac, L.-J. The metal is found in the Earth’s crust in the pure, free elemental form (“native silver”), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Rising temperatures make the liquid expand in a liquid-in-tube thermometer and bend bimetallic strips. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. The atomic mass is the mass of an atom. Atomic number (number of protons in the nucleus): 78; Atomic symbol (on the periodic table of elements): Pt; Atomic weight (average mass of the atom): 195.1 Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. Platinum: description Your user agent does not support the HTML5 Audio element. The chemical symbol for Tellurium is Te. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. This dependence is usually expressed by the coefficient of linear or volume expansion. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. The chemical symbol for Barium is Ba. Density is defined as the mass per unit volume. Platinum is the third element of the tenth column in the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. Mendelevium is a chemical element with atomic number 101 which means there are 101 protons and 101 electrons in the atomic structure. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platino, meaning "little silver". Platinum (Pt) is a heavy white metal that has the atomic number 78 in the periodic table. Atomic weight of Platinum is 195.084 u or g/mol. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Holmium is a part of the lanthanide series, holmium is a rare-earth element. © 2019 periodic-table.org / see also Atomic Number: 78. Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm 3. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. Atomic Weight: 195.084. The chemical symbol for Praseodymium is Pr. The chemical symbol for Silicon is Si. Number of Protons. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. In the periodic table, the elements are listed in order of increasing atomic number Z. Platinum atoms have 78 electrons and 78 protons with 117 neutrons in the most abundant isotope. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. But its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. See also: Atomic Mass Number – Does it conserve in a nuclear reaction? Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. Platinum crystallize in a face centered cube crystal with a unit cell length of . This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Although neodymium is classed as a rare earth, it is a fairly common element. Various ores, including copper and nickel deposits contain platinum in combination with sulfide, arsenide and antimonides. Radon is a radioactive, colorless, odorless, tasteless noble gas. It is the heaviest essential mineral nutrient. Anyone can be able to come here, learn the basics of materials science, material properties and to compare these properties. Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. The chemical symbol for Nobelium is No. The chemical symbol for Antimony is Sb. But this “huge” space is occupied primarily by electrons, because the nucleus occupies only about 1721×10−45 m3 of space. Information on three additional radioisotopes is available (191, 193, 197). Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Platinum definition, a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Because of its high chemical reactivity, barium is never found in nature as a free element. Element Classification: Metal. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Nickel is a silvery-white lustrous metal with a slight golden tinge. Typical densities of various substances are at atmospheric pressure. Under standard conditions, it is the lightest metal and the lightest solid element. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. The density of Hassium results from its high atomic weight and from the significant decrease in ionic radii of the elements in the lanthanide series, known as lanthanide and actinide contraction. Since the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance, it is obvious, the density of a substance strongly depends on its atomic mass and also on the atomic number density (N; atoms/cm3). Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Platinum is one of the least reactive metals. The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Compressibility (also known as the coefficient of compressibility is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Nuclides that have the same neutron number but a different proton number are called isotones. The unit of measure for mass is the atomic mass unit (amu). Know everything about Platinum Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. The chemical symbol for Samarium is Sm. Europium is one of the least abundant elements in the universe. Tellurium is far more common in the universe as a whole than on Earth. Only about 5×10−8% of all matter in the universe is europium. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect: Note that, it was found the rest mass of an atomic nucleus is measurably smaller than the sum of the rest masses of its constituent protons, neutrons and electrons. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. Platinum occurs natively, accompanied by small quantities of iridium, osmium, palladium, ruthenium, and rhodium, all belonging to the same group of metals.These are found in the alluvial deposits of the Ural mountains, of Columbia, and of certain western American states. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. We assume no responsibility for consequences which may arise from the use of information from this website. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. Platinum is a chemical element with symbol Pt and atomic number 78. The word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. It is found in gold-bearing deposits in the USA, Columbia, and the Ural Mountains. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. The chemical symbol for Bismuth is Bi. A freshly exposed surface of pure copper has a reddish-orange color. The unit of measure for mass is the atomic mass unit (amu). It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. The density and atomic radius of platinum are respectively: [Atomic mass of Pt = 195] Platinum crystallises in a face centered cube crystal with a unit cell length of 3,9231 . ✦ Being a ductile, malleable metal with silvery sheen, platinum is most commonly used in jewelry. The chemical symbol for Platinum is Pt. The configuration of these electrons follows from the principles of quantum mechanics. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. The chemical symbol for Europium is Eu. 2) You may not distribute or commercially exploit the content, especially on another website. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. All of its isotopes are radioactive. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Hassium is a chemical element with symbol Hs and atomic number 108. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. The chemical symbol for Selenium is Se. Berkelium is a member of the actinide and transuranium element series. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. The chemical symbol for Germanium is Ge. Iron is a metal in the first transition series. The chemical symbol for Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. The chemical symbol for Arsenic is As. Sources. It is a Transition metal in Group 10. It is one of the least reactive chemical elements and is solid under standard conditions. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. The standard SI unit is kilograms per cubic meter (kg/m3). Niobium is a soft, grey, ductile transition metal, often found in the minerals pyrochlore (the main commercial source for niobium) and columbite. Platinum: Symbol Pt and an atomic number of 78. Zirconium is widely used as a cladding for nuclear reactor fuels. Uranium has the highest atomic weight of the primordially occurring elements. Symbol. Platinum is ductile, malleable, silvery-white or gray-white in color, and non-reactive. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. The chemical symbol for Thorium is Th. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. We realize that the basics in the materials science can help people to understand many common problems. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. Therefore the space in an atom (between electrons and an atomic nucleus) is not empty, but it is filled by a probability density function of electrons (usually known as  “electron cloud“). Atomic Mass of Platinum Atomic mass of Platinum is 195.078 u. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Atlas » Learn more about the world with our collection of regional and country maps. Uranium is a silvery-white metal in the actinide series of the periodic table. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. The chemical symbol for Scandium is Sc. The chemical symbol for Cadmium is Cd. For example, the neutron number of uranium-238 is 238-92=146. The chemical symbol for Platinum is Pt. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. » Boiling Point » Melting Point » Abundant » State at STP » Discovery Year About Platinum. The chemical symbol for Platinum is Pt. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. It is the least reactive precious metal and is known for its resistance to corrosion and tarnishing. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. History. Atomic Number: 78. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. Atomic Mass of Platinum. It is the Pauli exclusion principle that requires the electrons in an atom to occupy different energy levels instead of them all condensing in the ground state. The difference is a measure of the nuclear binding energy which holds the nucleus together. The chemical symbol for Erbium is Er. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. The chemical symbol for Astatine is At. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Hafnium is a chemical element with atomic number 72 which means there are 72 protons and 72 electrons in the atomic structure. Melting Point: 2041.55 K (1768.4°C or 3215.1°F) Boiling Point: 4098 K (3825°C or 6917°F) Density: 21.46 grams per cubic centimeter. Pure platinum is slightly harder than pure iron and hence does not wear out too soon. 78 Pt Platinum 195.084. Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. The chemical symbol for Sodium is Na. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. The chemical symbol for Phosphorus is P. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. Our platinum page has over 260 facts that span 87 different quantities. If we include man made elements, the densest so far is Hassium. Cerium is the second element in the lanthanide series. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Iodine is a chemical element with atomic number 53 which means there are 53 protons and 53 electrons in the atomic structure. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. As a result of this expansion, the density of most materials decreases. Neptunium metal is silvery and tarnishes when exposed to air. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. It is classified as a transition metal. The chemical symbol for Curium is Cm. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. The platinum atom has a radius of 139 pm and a Van der Waals radius of 175 pm. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. The chemical symbol for Plutonium is Pu. The chemical symbol for Rubidium is Rb. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. The chemical symbol for Polonium is Po. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest metal (after osmium) with a density of 22.56 g/cm 3 as defined by experimental X-ray crystallography. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. The information contained in this website is for general information purposes only. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. What's in a name? Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. The chemical symbol for Xenon is Xe. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. They can also be used for Platinum advertisement and marketing. The atomic radii decrease across the periodic table because as the atomic number increases, the number of protons increases across the period, but the extra electrons are only added to the same quantum shell. Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. The chemical symbol for Molybdenum is Mo. The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. Sodium is a soft, silvery-white, highly reactive metal. Platinum is used in jewelry, laboratory equipment, electrical contacts, dentistry, and automobile emissions control devices. The atomic radius of a chemical element is a measure of the distance out to which the electron cloud extends from the nucleus. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. The chemical symbol for Fermium is Fm. Its boiling point is the lowest among all the elements. The chemical symbol for Boron is B. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. The chemical symbol for Americium is Am. Platinum is member of platinum group of element along with iridium, rhodium, osmium, Palladium and ruthenium. Atomic Number. In ancient times, people in Egypt and the Americas used platinum for jewelry and decorative pieces, often times mixed with gold. Group Name: none. Platinum, symbol Pt, has a Face Centered Cubic structure and Gray color. Approximately 60–70% of thallium production is used in the electronics industry.

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platinum atomic number