Isotopes

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  • Created by: Rachel
  • Created on: 12-04-13 19:47

An atom is the smallest part of an element that can exist on its own

An atom consists of three sub-atomic particles: protons, neutrons, electrons

Protons and neutrons form the nucleus at the centre of the atom, with electrons orbiting in shells

All matter is made up from the chemical elements and 116

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