Chromium: Difference between revisions
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imported>David Yamakuchi m (New page: {{subpages}} {{Basic elemental info}}) |
imported>Milton Beychok m (Replace infobox and added some info to it) |
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{{ | {{Elem_Infobox | ||
|elName=Chromium | |||
|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>5</sup>4s<sup>1</sup> | |||
|no1= | |||
|no2= | |||
|no3= | |||
|no4= | |||
|properties=Steel-ray, lustrous, hard metal. Malleable and corrosion resistant. Multi-valent. | |||
|compounds= | |||
|uses= | |||
|hazard= Hexavalent chromium is toxic. | |||
}} | |||
'''Chromium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Cr. Its [[atomic number]] (the number of [[proton]]s) is 24. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 51.9961 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | |||
Chromium is considered to be a member of the "Transition metal" class of element. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 2,671 °[[Celsius (unit)|C]], and a [[melting point]] of 1,907 °C. | |||
Revision as of 17:26, 19 April 2011
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Chromium is a chemical element, having the chemical symbol Cr. Its atomic number (the number of protons) is 24. It has a standard atomic weight of 51.9961 g•mol −1 and is a solid in its elemental form.
Chromium is considered to be a member of the "Transition metal" class of element. At a pressure of 101.325 kPa, it has a boiling point of 2,671 °C, and a melting point of 1,907 °C.