Symbol
Zr
Atomic Number
40
Atomic Mass
91.224
Protons
40
Neutrons
51
Electrons
40
Type
Transition Metal
Isotopes
Zirconium-90, Zirconium-91, Zirconium-92, Zirconium-94, Zirconium-96
Discovery Year
1789
Discovered By
Martin Heinrich Klaproth
Group
4
Period
5
Boiling Point
Zirconium has a boiling point of 4652°F
Melting Point
Zirconium has a melting point of 3340°F
Electron Configuration
[Kr] 5s² 4d²
Density (g/cm³)
6.506
Crystal Structure
Hexagonal close-packed
Magnetism
Paramagnetic
Abundance in Earth's Crust
0.018%
Phase at Room Temperature
Solid