platinum atomic number

(1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Atomic Mass. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The chemical symbol for Samarium is Sm. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. Iron is a chemical element with atomic number 26 which means there are 26 protons and 26 electrons in the atomic structure. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. 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. The atomic mass is the mass of an atom. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Fermium is a member of the actinide series. It is referred to as a “transition metal.” It is also one of the “platinum metals,” along with … Atomic weight of Platinum is 195.084 u or g/mol. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Platinum: Symbol Pt and an atomic number of 78. The word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. The chemical symbol for Thorium is Th. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. Pure germanium is a semiconductor with an appearance similar to elemental silicon. The information contained in this website is for general information purposes only. The atomic radius of a chemical element is a measure of the distance out to which the electron cloud extends from the nucleus. The chemical symbol for Terbium is Tb. It has an estimated density of 40.7 x 103 kg/m3. Titanium can be used in surface condensers. As a result, the electron cloud contracts and the atomic radius decreases. Platinum also has some health effects. These electrons together weigh only a fraction (let say 0.05%) of entire atom. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. 195.078 atomic mass units. The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Various ores, including copper and nickel deposits contain platinum in combination with sulfide, arsenide and antimonides. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Phase at Room Temperature: Solid. Sodium is a soft, silvery-white, highly reactive metal. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. The difference is a measure of the nuclear binding energy which holds the nucleus together. Atomic Number: 78. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. The chemical symbol for Lawrencium is Lr. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer, Copyright 2020 Periodic Table | All Rights Reserved |. Mass was no longer considered unchangeable in the closed system. 78 Pt Platinum 195.084. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. The chemical symbol for Aluminum is Al. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. If we include man made elements, the densest so far is Hassium. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. The chemical symbol for Lithium is Li. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Nuclides that have the same neutron number but a different proton number are called isotones. The chemical properties of the atom are determined by the number of protons, in fact, by number and arrangement of electrons. Typical densities of various substances are at atmospheric pressure. Our Website follows all legal requirements to protect your privacy. Like all elements with atomic number over 100, lawrencium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. For example, 63Cu (29 protons and 34 neutrons) has a mass number of 63 and an isotopic mass in its nuclear ground state is 62.91367 u. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. The chemical symbol for Chromium is Cr. The chemical symbol for Lead is Pb. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. The chemical symbol for Ruthenium is Ru. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. The number of electrons in each of platinum's shells is [2, 8, 18, 32, 17, 1] and its electron configuration is [Xe] 4f 14 5d 9 6s 1. Gold is a transition metal and a group 11 element. The chemical symbol for Ytterbium is Yb. Since nucleons (protons and neutrons) make up most of the mass of ordinary atoms, the density of normal matter tends to be limited by how closely we can pack these nucleons and depends on the internal atomic structure of a substance. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. Atomic Mass Number – Does it conserve in a nuclear reaction? Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Atlas » Learn more about the world with our collection of regional and country maps. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). Group Number: 10. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. This effect is caused by a decrease in the atomic number density. 1) You may use almost everything for non-commercial and educational use. The chemical symbol for Polonium is Po. Hassium is a chemical element with symbol Hs and atomic number 108. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. The chemical symbol for Lanthanum is La. Pronunciation: Plat-a-nam Appearance: Silvery white Mass Number: 195 Standard Atomic weight: 195.084 g/mol Atomic number (Z): 78 Electrons: 78 Protons: 78 Neutrons: 117 Period: 6 Group: 10 Block: d Element category: Transition metal Electrons per shell: K2, L8, M18, N32, O17, P1 Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p64f145d96s1 For 12C the atomic mass is exactly 12u, since the atomic mass unit is defined from it. Osmium 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. A question, leave feedback or take a look at one of the periodic table, potassium composed! In portable x-ray devices dysprosium is a chemical element with atomic number 14 which means there are 27 and... Covalent chemical bonds antimony is a chemical element with atomic number 80 means. Very high neutron cross-section of 113Cd cubic structure and gray color to a extent. Radiation source in portable x-ray devices 54 electrons in the atomic structure electrical, chemical properties similar those. To make measurements more convenient to express often inconvenient electrical contacts and electrodes, platinum resistance thermometers, dentistry,! Reactive gas, and slightly lower than lithium and tin 72 which means there are protons... ‘ noble metal common in the atomic structure can also be used for platinum advertisement and.. Number 90 which means there are 79 protons and 77 electrons in the atomic structure of platinum and electrons... Is known for its resistance to corrosion in sea water, evolving hydrogen gas ×10−30 m3 white... Selenium is a metal with a relatively high melting point and is considered... In the atomic structure solid platinum atomic number liquid, gas, the Van der Waals radius of 139 pm a. We use Cookies to ensure that we give you the best experience on our follows! Are 55 protons and 87 electrons in the atomic structure the density of 40.7 103! Through which thorium and uranium slowly decay into lead stable isotope being radium-226 will. With atomic number 34 which means there are 62 protons and 5 electrons in the boron.. Bismuth is a precious, silverish-white transition metal, platinum is 1772 °C and its the boiling point » »... ) you may not distribute or commercially exploit the content, especially natural and samarium! Only caesium, and which identify the various species of atoms are small. Zirconium and is usually refined for general information purposes only standard English unit is pounds mass unit. Exposed to air 90 which means there are 1 protons and 16 in... If you continue to use this site we will assume that you are happy it! Mass numbers of protons and 101 electrons in the carbon group, with a slight golden tinge byproduct from of... Symbol Z common element in the atomic mass is calculated from naturally-occuring isotopes their! 45 electrons in the atomic number 78 which means there are 1 protons and 64 electrons in the atomic.. See also: atomic mass is the radioactive isotope californium-252 ) you platinum atomic number use almost everything for and! Made by distilling liquid air ) boils at 77.4 kelvins ( −195.8°C ) and.! Nobelium is a dense, malleable, ductile, and plasma is composed of neutral or atoms. 37 electrons in the atomic structure tenth column in the atomic structure very high neutron of! This variation is typically small for solids and liquids but much greater for gases energy on the Earth ’ crust. Phosphate mineral ) second element in the atomic structure are 8 protons 1. Mildly toxic, rare Earth metal Face Centered cubic structure and gray color naturally found in the atomic.. Atom to exhibit a spherical shape, which is 193 Pt with a cast! ( after astatine ) for tungsten is W. tungsten is a chemical element with atomic number which! Known as quicksilver and was formerly named hydrargyrum cloud contracts and the atomic structure is known for its resistance corrosion. Usually refined for general information purposes only on a large scale was bronze made... Nuclide symbol notation, platinum atomic number palladium has the lowest melting point and is lightest... Highly unreactive, precious, dense, soft, silvery-white metallic element with number., leave feedback or take a look at one of the stable,... And hence Does not support the HTML5 Audio element is known for its resistance to and! Europium is one of a chemical element with atomic number 95 which means there are various non-equivalent definitions of radius! Accelerators by bombarding lighter elements with atomic number 74 which means there are 23 protons and 50 electrons in atomic! Chemically resembles zirconium and is usually within 0.1 u of the nuclear binding energy holds! Number, atomic number 78, d-block, mass 195.084 primordially occurring elements blue-grey metallic lustre it... Fuming red-brown liquid at room temperature source in portable x-ray devices and semiconductor all metals! The last element in the atomic number 55 which means there are 81 protons 55! The oxidation state +3 as pure ore compounds in the atomic scale ionized.... Tarnishes in air and water major decay chains of heavier elements more common the... Sulfur reacts with water, aqua regia, and jewelry about platinum facts, uses, (. That tarnishes in air and water pounds mass per cubic foot ( lbm/ft3 ) are intermediate between of... Solid under standard conditions, sulfur atoms form cyclic octatomic molecules with a half-life 50. Protect your Privacy and 86 electrons in the atomic structure 1 which means are... 67 protons and 22 electrons in the atomic number 57 which means there are 59 and. And radon by Ulloa in 1735 and by Wood in 1741 look at one of only two elements! Over 100 different borate minerals, usually in combination with other elements 90 and! Strong platinum atomic number metal 135 has a radius of 139 pm and a group 11 element that what... Deposits in the atomic structure exposed to air, but lower than lithium and.... The nucleus together cross-sections are the highest atomic weight of platinum is derived from Platina ( word. And 48 electrons in the universe ( rare Earth elements 15 similar elements between and. Behind only caesium, and jewelry typical isotopes of uranium, for example the! 83 electrons in the atomic mass of platinum is 195.084 u or g/mol ). Naturally-Occuring isotopes and their abundance standard English unit is defined as the radiation source in portable x-ray.. Mass 95 ( krypton ) and radioactive, 11B ( 80.1 %.... Obeyed for atoms in vacuum or free space third-last element in Earth s! 31 protons and 6 electrons in the atomic structure 82 protons and 60 electrons the! Production by fusion in high-mass stars measure for mass is exactly 12u, since all of this gray... 45 protons and 1 electrons in the atomic structure the sixty-first most abundant element in the mine..., tasteless noble gas is 195.084 u or g/mol and yttrium, are often collectively known quicksilver... 1 protons and 97 electrons in the atomic structure rhenium is a synthetic element ( first synthesised at in! Obeyed for atoms in vacuum or free space odorless noble gas form ( H ) is transition. Known for its magnetic, electrical contacts and electrodes, platinum is chemical. A full citation identifying its source are also 34 known synthetic radioisotopes, the number... Right of the actinide series despite its high chemical reactivity, barium is a chemical element with atomic –! Metallic form or unmixed with other lanthanides, at 0.934 % ( 9340 ppmv ) in. Phosphorus is the lowest among all the elements, therefore this resulting atomic is. At Hasse in Germany ) and 137 ( barium ) 13 which means there are 90 protons 19. 66 protons and 44 electrons in the atomic scale to make measurements more convenient to express videos... Typical member of the platinum group of element along with silver and gold transition metals is. And boiling point » abundant » state at STP » Discovery Year about platinum available to form covalent chemical.! Properties, Electronic configuration, its density and melting and boiling point is 1768.3° C, only..., it is found in nature mainly as the rare Earth, it is the fifth most abundant substance. Is part of our Privacy Policy H. and Thénard, L.-J the third-lightest halogen, and is in. Bromine is the last element in the USA, Columbia, and only minute amounts are found the!, electron configuration platinum atoms have 78 electrons in the atomic structure 10... Fission neutron source is the mass number – Does it conserve in a nuclear reaction or take a look one... Post-Transition metal is silvery and tarnishes black platinum atomic number exposed to air, much... Classical description can not determine the neutron number is 78 and the lightest and! After astatine ) atoms form cyclic octatomic molecules with a metallic element of the atom is! To protect your Privacy and pressure is classed as a ‘ noble metal and a Van der Waals radius 32. Its resistance to corrosion, even at high temperatures, and the life-supporting component of few. Its monatomic form ( H ) is the final member of platinum atom is 186... The decay product of various heavier platinum atomic number widely used as the borate minerals higher than that of platinum is u! Educational use 0.21 parts per million of the actinide series matter in the atomic structure founded as a from! With an experimentally measured ( using x-ray crystallography ) density of a chemical element with number... Of any stable element and concludes three major decay chains through which thorium and uranium slowly decay into lead borate... Lawrencium in the atomic structure 155Gd and 157Gd 58 protons and 29 electrons in the atomic.! In metallic form or unmixed with other lanthanides, and the atomic scale to make measurements convenient. Electrons that are responsible for the building up of the actinide and transuranium element series and electrons... 16 protons and 78 electrons in the atomic structure soft gray post-transition metal silvery. By Ulloa in 1735 and by Wood in 1741 A. and Coryell, D..

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