Polonium
by Carlos Clarivan
Title
Polonium
Artist
Carlos Clarivan
Medium
Photograph - Photograph
Description
Polonium (Po). Diagram of the nuclear composition, electron configuration, chemical data, and valence (outer electron) orbitals of an atom of polonium-209 (atomic number: 84), an isotope of this element. The nucleus consists of 84 protons (red) and 125 neutrons (orange). 84 electrons (white) successively occupy available electron shells (rings). Polonium is a radioactive metalloid in group 16, period 6, and the p-block of the periodic table. Discovered in 1898 by the Curies, it was named after Poland. Polonium-209 has a half-life of 103 years.
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August 1st, 2016
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