104Rf

Rutherfordium

Transition Metal

Rutherfordium (Rf) is element 104, a transition metal, in period 7 and group 4 of the periodic table. Its atomic mass is usually given as 267. Discovered by Joint Institute, 1964.

Atomic Number104

SymbolRf

NameRutherfordium

Atomic Weight267 u

CategoryTransition Metal

Period7

Group4

Electron Config[Rn] 5f14 6d2 7s2

Discovered ByJoint Institute, 1964

More Transition Metals