Bohrium ¶

AtomicNumber: 107

Element: Bohrium

Symbol: Bh

AtomicMass: 264.0

NumberofNeutrons: 157

NumberofProtons: 107

NumberofElectrons: 107

Period: 7

Group: 7.0

Phase: artificial

Radioactive: yes

Natural: nan

Metal: yes

Nonmetal: nan

Metalloid: nan

Type: Transactinide

AtomicRadius: nan

Electronegativity: nan

FirstIonization: nan

Density: 37.0

MeltingPoint: nan

BoilingPoint: nan

NumberOfIsotopes: nan

Discoverer: Armbruster and M�nzenberg

Year: 1981.0

SpecificHeat: nan

NumberofShells: 7

NumberofValence: nan