B

Boron

Atomic Number 5 · Crystalline pieces

A metalloid essential for plant growth. Used in fiberglass, ceramics, and as a neutron absorber in nuclear reactors.

Atomic Mass

10.81 u

Category

Metalloid

Phase (STP)

Solid

Density

2.34 g/cm³

Melting Point

2076 °C

Boiling Point

3927 °C

Electronegativity

2.04 (Pauling)

Atomic Radius

85 pm

Electron Configuration

[He] 2s2 2p1

Discovered

1808 — Joseph Louis Gay-Lussac

Find Boron Samples

Sample form: Crystalline pieces

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Various element samples and collections

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