Iodine

Source: http://www.tabulka.cz/english/elements/show.asp?id=53

name Iodine
latin Iodum
french Iode
german Iod
symbol I
proton number 53
atomic weight 126.90447
Pauling electronegativity 2.66
electronic configuration [Kr] 4d105s25p5
1s22s22p63s23p63d104s24p64d105s25p5
melting point 386.85 K, 113.7°C, 236.66°F
boiling point 457.4 K, 184.25°C, 363.65°F
group 17
period 5
state (by 20°C) solid
oxidation states -1, +1, +3, +5, +7

Discoverer

Year of discovery Discoverer
1811 Bernard Courtois


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