Atomic Structure

Explore subatomic particle charges, masses and locations and a neutral atom’s structure.

Explore atomic number and mass number and proton, neutron and electron numbers.

Explore isotopes and ions and electron loss or gain.

Explore the sequence of atomic models and bohr’s and chadwick’s contributions.

Explore unstable nuclei and activity and spontaneous radioactive decay.

Explore alpha, beta and gamma properties and penetration, range and ionisation.

Explore mass and atomic-number conservation and alpha and beta nuclear equations.

Explore half-life and random decay and remaining activity or fraction.

Explore activity and detector count rate and background-corrected count rate.

Explore irradiation and contamination and precautions against each hazard.

Learn about radioactive hazards and half-life, practise the key ideas and apply them to GCSE Physics questions.

Explore natural and artificial background sources and background variation.

Explore medical uses of nuclear radiation and suitable penetration and half-life.

Explore the meaning of nuclear fusion and fusion of light nuclei.

Explore the meaning of nuclear fission and neutron-induced splitting and its products.