Osmium

Source: http://www.tabulka.cz/english/elements/show.asp?id=76

name Osmium
latin Osmium
french Osmium
german Osmium
symbol Os
proton number 76
atomic weight 190.23
Pauling electronegativity 2.2
electronic configuration [Xe] 4f145d66s2
1s22s22p63s23p63d104s24p64d105s25p64f145d66s2
melting point 3306 K, 3033°C, 5491°F
boiling point 5285 K, 5012°C, 9053°F
group 8
period 6
state (by 20°C) solid
oxidation states +3, +4, +6, +8

Discoverer

Year of discovery Discoverer
1804 Smithson Tennant (1761-1815)


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