Protactinium: Difference between revisions
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imported>David Yamakuchi m (New page: {{subpages}}{{Basic elemental info}}<references/>) |
imported>Milton Beychok (Replaced the info box and edited the lede somewhat) |
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{{Elem_Infobox | |||
|elName=Protactinium | |||
|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>4f<sup>14</sup>5d<sup>10</sup>6s<sup>2</sup>6p<sup>6</sup>5f<sup>2</sup>6d<sup>1</sup>7s<sup>2</sup> | |||
|no1= | |||
|no2= | |||
|no3= | |||
|no4= | |||
|properties= | |||
|compounds= | |||
|uses= | |||
|hazard=Radioactive and toxic. | |||
}} | |||
'''Protactinium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Pa. Its [[atomic number]] (the number of [[proton]]s) is 91. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 231.0359 g•mol<sup> −1</sup> and it is a [[solid]] in its elemental form. | |||
Protactinium is considered a member of the "Actinide" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of ~4,000 °[[Celsius (unit)|C]] and a [[melting point]] of 1,572 °C. | |||
Latest revision as of 00:58, 3 May 2011
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Protactinium is a chemical element, having the chemical symbol Pa. Its atomic number (the number of protons) is 91. It has a standard atomic weight of 231.0359 g•mol −1 and it is a solid in its elemental form.
Protactinium is considered a member of the "Actinide" class of elements. At a pressure of 101.325 kPa, it has a boiling point of ~4,000 °C and a melting point of 1,572 °C.