Atomic Structure 0.0 / 5 ? PhysicsAtomic StructureGCSEAQA Created by: asho glenoCreated on: 09-04-15 18:35 Proton relative mass 1 relative charge +1 1 of 6 Neutron rm 1 rc 0 2 of 6 Electron rm negligble rc -1 3 of 6 Atomic No = Number of... protons in the atom. Equal to number of electrons 4 of 6 Mass No = Sum of number of... neutrons and protons. 5 of 6 Ion = An atom which has lost or gained one or more... electrons to form a charged particle 6 of 6
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