Sodium: Difference between revisions
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{{Elem_Infobox | {{Elem_Infobox | ||
|elName=Sodium | |elName=Sodium | ||
|eltrnCfg= | |eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>1</sup> | ||
|elgroup=1 | |elgroup=1 | ||
|elperiod=3 | |elperiod=3 | ||
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|no3= | |no3= | ||
|no4= | |no4= | ||
|properties= | |properties=Soft, bright, silvery metal. Reactive. | ||
|compounds= | |compounds= | ||
|uses= | |uses= | ||
|hazard= | |hazard=Potentially explosive. Store in dry, inert, oxygen-free atmosphere. | ||
}} | }} | ||
Sodium is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Na. Its [[atomic number]] (the number of [[proton]]s) is 11. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 22.98977 g•mol<sup> −1</sup>, and is typically found as a [[solid]] in its elemental form. | |||
Sodium is considered to be a member of the "alkali metal" class of element. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 883 °[[Celsius (unit)|C]], and a [[melting point]] of 97.8 °C | |||
It is easily oxidized to the +1 oxidation state and forms many salts. Elevated sodium levels in humans may lead to high blood pressure and other complications. The pure metal reacts violently with water. | |||
Revision as of 14:49, 17 April 2011
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Sodium is a chemical element, having the chemical symbol Na. Its atomic number (the number of protons) is 11. It has a standard atomic weight of 22.98977 g•mol −1, and is typically found as a solid in its elemental form.
Sodium is considered to be a member of the "alkali metal" class of element. At a pressure of 101.325 kPa, it has a boiling point of 883 °C, and a melting point of 97.8 °C
It is easily oxidized to the +1 oxidation state and forms many salts. Elevated sodium levels in humans may lead to high blood pressure and other complications. The pure metal reacts violently with water.