Dubnium

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Dubnium
268



  Db
105
1s22s22p63s23p63d104s24p6 4d105s25p64f145d106s26p65f14 6d37s2
[ ? ] Transition metal:
Hazard:
Radioactive


Dubnium is a chemical element, having the chemical symbol Db and its atomic number (the number of protons) is 105. It has a standard atomic weight of 268 g•mol −1.

Dubnium is considered a member of the "Transition metal" class of elements. There is no reliable data as to its boiling point or melting point.