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Helium

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Key Stage 2

Meaning

Helium is a gas.

Key Stage 3

Meaning

The chemical symbol for Helium.

Helium is a Noble Gas with 2 protons in the nucleus.

About Helium

Helium has the chemical formula He.
Helium is inert.
Helium is a gas at room temperature.
Helium gas is less dense than air.
An atom of Helium has two electrons in its outer shell.

Key Stage 4

Meaning

Helium is a non-metal element with 1 proton in the nucleus.

About Helium

Helium has the chemical formula He.
Helium is inert.
Helium is a gas at standard temperature and pressure.
Helium gas is less dense than air.
An atom of Helium has two electrons in its outer shell.
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