Barium

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Revision as of 17:26, 25 April 2011 by imported>Milton Beychok (Replaced the infobox and edited the lede.)
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Barium
137.327(7)



  Ba
56
1s22s22p63s23p63d10 4s24p64d105s25p66s2
[ ? ] Alkaline Earth Metal:
Properties:
Silvery, soft metal.


Barium is a chemical element, having the chemical symbol Ba. Its atomic number (the number of protons) is 56. It has a standard atomic weight of 137.327 g•mol −1 and is a solid in its elemental form.

Barium is considered to be a member of the "Alkaline earth metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 1,897 °C and a melting point of 727 °C.

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