40Zr

Zirconium

Transition Metal

Zirconium (Zr) is element 40, a transition metal, in period 5 and group 4 of the periodic table. Its standard atomic weight is 91.224, it melts at 1855 °C and boils at 4409 °C. Discovered by Martin Heinrich Klaproth, 1789.

Atomic Number40

SymbolZr

NameZirconium

Atomic Weight91.224 u

CategoryTransition Metal

Period5

Group4

Melting Point1855 °C

Boiling Point4409 °C

Density6.506 g/cm³

Electron Config[Kr] 4d2 5s2

Discovered ByMartin Heinrich Klaproth, 1789

More Transition Metals