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Zirconium

40
Zr
Zirconium
91.224

Properties

Symbol:Zr
Atomic Number:40
Atomic Weight:91.224
Density:6.52 g/cm3
Melting Point:
2128K
1855°C
3371°F
Boiling Point:
4682K
4409°C
7968°F

Electron Shells

2, 8, 18, 10, 2

Zirconium (Zr) is a metallic chemical element with atomic number 40. It has five naturally occurring isotopes, of which 90Zr (40 protons, 50 neutrons) is the most abundant. It accounts for more than half the zirconium found in nature.

Zirconium is sometimes used in abrasives like sandpaper, and also sometimes in dental implants.