Barium: Difference between revisions

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imported>David Yamakuchi
m (New page: {{subpages}}{{Basic elemental info}}<references/>)
 
imported>Milton Beychok
m (Replaced the infobox and edited the lede.)
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{{subpages}}{{Basic elemental info}}<references/>
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{{Elem_Infobox
|elName=Barium
|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup> 4s<sup>2</sup>4p<sup>6</sup>4d<sup>10</sup>5s<sup>2</sup>5p<sup>6</sup>6s<sup>2</sup>
|no1=
|no2=
|no3=
|no4=
|properties=Silvery, soft metal.
|compounds=
|uses=
|hazard=
}}
 
 
'''Barium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Ba. Its [[atomic number]] (the number of [[proton]]s) is 56. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 137.327 g•mol<sup> −1</sup> 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 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 1,897 °[[Celsius (unit)|C]] and a [[melting point]] of 727 °C.

Revision as of 18:26, 25 April 2011

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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.