Francium: Difference between revisions
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imported>David Yamakuchi m (New page: {{subpages}}{{Basic elemental info}}<references/>) |
imported>Milton Beychok m (Replaced the info box and edited the lede somewhat) |
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|elName=Francium | |||
|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>7s<sup>1</sup> | |||
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|properties= | |||
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|hazard=Highly radioactive | |||
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'''Francium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Fr. Its [[atomic number]] (the number of [[proton]]s) is 87. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 223 g•mol<sup> −1</sup> and, at temperatures below 27 °C, it is a [[solid]] in its elemental form. | |||
Francium is considered a member of the "Alkali metal" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 677 °[[Celsius (unit)|C]] and a [[melting point]] of 27 °C. | |||
Latest revision as of 20:43, 2 May 2011
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Francium is a chemical element, having the chemical symbol Fr. Its atomic number (the number of protons) is 87. It has a standard atomic weight of 223 g•mol −1 and, at temperatures below 27 °C, it is a solid in its elemental form.
Francium is considered a member of the "Alkali metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 677 °C and a melting point of 27 °C.