Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Ano ang pinakamaliit na kontinente sa mundo? The very properties of platinum that had made it so hard to work with became valued and platinum was used for lab equipment, and other applications where its broad chemical resistance was required. How many protons and neutrons does platinum have? A measure of the propensity of a substance to evaporate. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). The chemical symbol for Neon is Ne. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. 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. The chemical symbol for Actinium is Ac. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Lead is soft and malleable, and has a relatively low melting point. Members of a group typically have similar properties and electron configurations in their outer shell. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. Astatine is the rarest naturally occurring element on the Earth’s crust. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. 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 charge on the proton and electron are exactly the same size but opposite. Data for this section been provided by the British Geological Survey. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Titanium is a lustrous transition metal with a silver color, low density, and high strength. That was Keele University's Katherine Haxton with the story of Platinum. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. Should I call the police on then? Berkelium is a member of the actinide and transuranium element series. Thulium is the thirteenth and third-last element in the lanthanide series. The standard SI unit is kilograms per cubic meter (kg/m3). The chemical symbol for Americium is Am. The chemical symbol for Radium is Ra. 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 |. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure.    Metalloids The chemical symbol for Fermium is Fm. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its extreme rarity in the Earth’s crust, comparable to that of platinum. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Platinum is used extensively for jewellery. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. The unit of measure for mass is the atomic mass unit (amu). 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. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. The chemical symbol for Aluminum is Al. A = 16 + 16 = 32. z = 16 - 18 = -2. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. 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). 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.


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