Radon

Key Stage 2

Meaning

Radon is a gas.

Key Stage 3

Meaning

The chemical symbol for Radon.

Radon is a radioactive Group 0 element, on the Periodic Table, with an atomic number of 86.

About Radon

Radon has the chemical formula Rn.

Radon has 86 protons and 136 neutrons in its nucleus giving it an Atomic Number of 86 and an atomic mass of 222.

Radon is a Noble Gas.

Radon is a gas at room temperature.

An atom of Radon has a full outer shell so it is inert.

Key Stage 4

The chemical symbol for Radon.

Meaning

Radon is a radioactive Group 0 element, on the Periodic Table, with 86 protons in the nucleus.

About Radon

Radon has the chemical formula Rn.

The most stable isotope of Radon has 136 neutrons in its nucleus giving it an atomic mass of 222.

Radon is a Noble Gas.

Radon is a gas at standard temperature and pressure.

An atom of Radon has a full outer shell so it is inert.

References

AQA

Radon gas, page 97, GCSE Physics, Hodder, AQA