dubnium

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dubnium

(dūb'nē-ŭm),
An artificial transplutonium element; atomic number 105; atomic weight 262 [Formerly called Unnilpentium, Unp; and Joliotium, after the French physicist F. Joliot-Curie.]
[Dubna, Russia]

dubnium

(doob′nē-ŭm, dŭb′) [ Dubna, Russia],

Db

A synthetic radioactive element; atomic mass 268; atomic number 105.
CAS # 54850-35-4
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