Helium: Difference between revisions
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'''{{BASEPAGENAME}}''' is a chemical element. It's atomic number (number of [[protons]]) is {{:{{BASEPAGENAME}}/Atomic number}}. It has a [[Atomic_mass#Standard_Atomic_Weights_of_the_Elements|Standard Atomic Weight]] of {{:{{BASEPAGENAME}}/Atomic mass}}, and is typically found as a {{:{{BASEPAGENAME}}/Standard phase}} in it's elemental form. {{BASEPAGENAME}} is considered to be a [[{{:{{BASEPAGENAME}}/Elemental Class}}]], {{#ifexist:{{BASEPAGENAME}}/Melting point||and}} has a [[boiling point]] of {{:{{BASEPAGENAME}}/Boiling point}}{{#ifexist:{{BASEPAGENAME}}/Melting point|, and a [[melting point]] of {{:{{BASEPAGENAME}}/Melting point}}}}. | '''{{BASEPAGENAME}}''' is a chemical element. It's atomic number (number of [[protons]]) is {{:{{BASEPAGENAME}}/Atomic number}}. It has a [[Atomic_mass#Standard_Atomic_Weights_of_the_Elements|Standard Atomic Weight]] of {{:{{BASEPAGENAME}}/Atomic mass}}, and is typically found as a {{lc:{{:{{BASEPAGENAME}}/Standard phase}}}} in it's elemental form. {{BASEPAGENAME}} is considered to be a [[{{:{{BASEPAGENAME}}/Elemental Class}}]], {{#ifexist:{{BASEPAGENAME}}/Melting point||and}} has a [[boiling point]] of {{:{{BASEPAGENAME}}/Boiling point}}{{#ifexist:{{BASEPAGENAME}}/Melting point|, and a [[melting point]] of {{:{{BASEPAGENAME}}/Melting point}}}}. | ||
Revision as of 12:50, 29 June 2008
Helium is a chemical element. It's atomic number (number of protons) is 2. It has a Standard Atomic Weight of 4.002602(2), and is typically found as a gas in it's elemental form. Helium is considered to be a Noble gas, has a boiling point of -268.93 °C
, and a melting point of -272.2 °C.