Atomic Number of Dubnium

Dubnium Atomic Number

Atomic Number of Dubnium is 105.

Chemical symbol for Dubnium is Db. Number of protons in Dubnium is 105. Atomic weight of Dubnium is 268 u or g/mol. Melting point of Dubnium is unknown and its the boiling point is unknown.

» Boiling Point » Melting Point » Discovery Year

About Dubnium

This is a radioactive chemical element which was discovered in the early 1970s by two competing groups of scientists, one working in the US, in the University of California, and the other working in a small Russian town of Dubna, which is a neighborhood of Moscow. The latter location was taken as a source for the name of the element. Dubnium can be obtained in nuclear reactors by processing californium, so it does not occur naturally and has no biological importance. It is very toxic and dangerous, so it is used solely for scientific purposes and research.

Properties of Dubnium Element

Atomic Number (Z)105
Atomic SymbolDb
Atomic Weight268 u
Density29.3 g/cm3
Melting Point (K)unknown
Melting Point (℃)unknown
Boiling Point (K)unknown
Boiling Point (℃)unknown
Heat Capacity
Abundance0 mg/kg
State at STP
DescriptionTransition metal
Electronegativity (Pauling) χ
Ionization Energy (eV)
Atomic Radius
Covalent Radius
Valence Electrons
Year of Discovery1967/70
DiscovererFlerow oder Ghiorso

What is the Boiling Point of Dubnium?

Dubnium boiling point is unknown. Boiling point of Dubnium in Kelvin is unknown.

What is the Melting Point of Dubnium?

Dubnium melting point is unknown. Melting point of Dubnium in Kelvin is unknown.

When was Dubnium Discovered?

Dubnium was discovered in 1967/70.