Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

This produced one atom of moscovium-287 and three atoms of moscovium-288. All four atoms quickly decayed into other elements. Moscovium's most stable isotope, moscovium-289, has a half-life of …

GHS, the Globally Harmonized System of Classification and Labeling of Chemicals, was developed by the United Nations as a way to bring into agreement the chemical regulations and standards of …

Because of its rarity, berkelium presently has no commercial use, however, with its relatively long half-life and availability in microgram quantities, Bk-249 is used extensively as a target to synthesize …

His many achievements include the discovery of super-heavy elements and significant advances in the nuclear physics of super-heavy nuclei, including experimental evidence for the “island of stability.”

Of all the elements, gold in its pure state is undoubtedly the most beautiful. It is metallic, having a yellow color when in a mass, but when finely divided it may be black, ruby, or purple.

Because of health concerns, the thorium in classic lantern mantles has been replaced by rare-earth elements that also produce intense light without the radioactivity.

May 8, 2019 · The periodic table of chemical elements is one of the most recognized tools in science. As we mark the 150th anniversary of the periodic table, the scientific community has declared 2019 to …

LICENSE https://www.nist.gov/pml/database-disclaimer Copper https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=29 IUPAC Periodic Table of the Elements and Isotopes (IPTEI)

Mercury forms useful compounds with other elements. Mercuric chloride (HgCl 2) is a very poisonous salt and was once used to disinfect wounds. Mercurous chloride (Hg 2 Cl 2), also called calomel, is …