Atoms: The Building Blocks of Matter

The term ‘nucleus’ is derived from the Latin for a ‘kernel’ in a piece of fruit and was first used by Michael Faraday in 1844 to refer to the central point of an atom. Discovered by Ernest Rutherford in 1911, the nucleus is the region at the centre of an atom containing protons and neutrons. Rutherford disproved the plum pudding model proposed by his former tutor J.J. Thomson by devising his ‘gold-foil’ experiment.

This video describes how Albert Einstein first theorised particle theory, and by extension atomic theory, after observing Robert Brown’s 1827 pollen grain experiment.

Lee is a freelance writer with a keen interest in history and science.