Osmium: Difference between revisions
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'''Osmium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Os. Its [[atomic number]] (the number of [[proton]]s) is 76. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 190.23 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | '''Osmium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Os. Its [[atomic number]] (the number of [[proton]]s) is 76. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 190.23 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | ||
Osmium is considered a member of the "Transition metal" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 5,012 °[[Celsius (unit)|C]] and a [[melting point]] of 3, | Osmium is considered a member of the "Transition metal" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 5,012 °[[Celsius (unit)|C]] and a [[melting point]] of 3,033 °C. | ||
Revision as of 23:15, 30 April 2011
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Osmium is a chemical element, having the chemical symbol Os. Its atomic number (the number of protons) is 76. It has a standard atomic weight of 190.23 g•mol −1 and is a solid in its elemental form.
Osmium is considered a member of the "Transition metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 5,012 °C and a melting point of 3,033 °C.