Roentgenium

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Roentgenium
280



  Rg
111
1s22s22p63s23p63d104s24p6 4d105s25p64f145d106s26p65f14 6d97s2
[ ? ] Transition metal:
Hazard:
Radioactive


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.