Sodium: Difference between revisions
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imported>Robert W King No edit summary |
imported>Mark Widmer (Opening paragraph revised to new standard: Phase, symbol, atomic no., and std. atomic weight. Updated "solid" link from disambig page to appropriate page.) |
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|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>1</sup> | |||
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|properties= | |properties=Soft, bright, silvery metal. Reactive. | ||
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|hazard= | |hazard=Potentially explosive. Store in dry, inert, oxygen-free atmosphere. | ||
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'''Sodium''' is a [[Chemical elements|chemical element]], typically found as a [[Solid_(state_of_matter)|solid]] in its elemental form. It has the [[chemical symbol]] Na (from the Latin ''natrium''), [[atomic number]] (number of [[protons]]) ''Z'' = 11, and a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 22.989770 g/mol. | |||
Sodium is considered to be 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 883 °[[Celsius (unit)|C]], and a [[melting point]] of 97.8 °C. In solid form, its density is slightly less than that of water at 0.968 g/cc. | |||
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. | |||
Latest revision as of 21:03, 12 January 2021
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Sodium is a chemical element, typically found as a solid in its elemental form. It has the chemical symbol Na (from the Latin natrium), atomic number (number of protons) Z = 11, and a standard atomic weight of 22.989770 g/mol.
Sodium is considered to be a member of the "alkali metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 883 °C, and a melting point of 97.8 °C. In solid form, its density is slightly less than that of water at 0.968 g/cc.
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.