atomic models 0.0 / 5 ? PhysicsAstronomyGCSEEdexcel Created by: burrellc15Created on: 07-11-18 17:35 alpha particle a particle made of two protons and two neutrons, emmited as ionising radiation from some radioactive isotopes 1 of 5 atom the smallest neutral part of an element that can take part in chemical reactions 2 of 5 electron a tiny particle with a negative charge and very little mass 3 of 5 element a simle substance made made up of only one type of atom 4 of 5 kinetic theory the model that explains the properties of different states of matter in terms of the movement of particles 5 of 5
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