Sr

Strontium

Atomic Number 38 · Metal piece in mineral oil

Produces brilliant red flames in fireworks. Strontium-90 is a dangerous radioactive fallout product from nuclear tests.

Atomic Mass

87.62 u

Category

Alkaline Earth Metal

Phase (STP)

Solid

Density

2.64 g/cm³

Melting Point

777 °C

Boiling Point

1382 °C

Electronegativity

0.95 (Pauling)

Atomic Radius

200 pm

Electron Configuration

[Kr] 5s2

Discovered

1790 — Adair Crawford

Find Strontium Samples

Sample form: Metal piece in mineral oil

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