Name Dubnium
Symbol Db
Atomic Number 105
Atomic Mass 262.0 atomic mass units
Number of Protons 105
Number of Neutrons 157
Number of Electrons 105
Melting Point Unknown
Boiling Point Unknown
Density Unknown
Normal Phase Synthetic
Family Transition Metals
Period 7
Cost Unavailable



Origin of Name After Dubna, Russia
Date and Place of Discovery In 1967 at the Nuclear Institute at Dubna, Russia and
at the University of California at Berkeley
Discovered by Various teams of scientists at each location
Common Compounds There are no known compounds.
Interesting facts
  • It was s existence was predicted by Bohuslav Brauner in 1902, Dubnium was disc
Common Uses
  • There are no known uses.


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