Roentgenium: Difference between revisions
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'''Roentgenium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Ds and its [[atomic number]] (the number of [[proton]]s) is 111. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 280 g•mol<sup> −1</sup> | '''Roentgenium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Ds and its [[atomic number]] (the number of [[proton]]s) is 111. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 280 g•mol<sup>−1</sup>. . | ||
Roentgenium is considered a member of the "Transition metal" class of elements. There | Roentgenium is considered a member of the "Transition metal" class of elements. There are no reliable data for its [[boiling point]] or its [[melting point]]. | ||
Latest revision as of 14:31, 5 May 2011
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Roentgenium is a chemical element, having the chemical symbol Ds and its atomic number (the number of protons) is 111. It has a standard atomic weight of 280 g•mol−1. .
Roentgenium is considered a member of the "Transition metal" class of elements. There are no reliable data for its boiling point or its melting point.