Zr

Zirconium

Atomic Number 40 · Metal crystal bar

A lustrous, corrosion-resistant metal. Used in nuclear reactor cladding and cubic zirconia gemstones.

Atomic Mass

91.224 u

Category

Transition Metal

Phase (STP)

Solid

Density

6.506 g/cm³

Melting Point

1855 °C

Boiling Point

4409 °C

Electronegativity

1.33 (Pauling)

Atomic Radius

155 pm

Electron Configuration

[Kr] 4d2 5s2

Discovered

1789 — Martin Heinrich Klaproth

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Sample form: Metal crystal bar

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