Atoms, Compounds and Isotopes

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  • Created by: GrB
  • Created on: 09-02-16 19:34

Atoms, Compounds and Isotopes

Atoms consist of protons, neutrons and electrons. In an element on the periodoc table the top number is the mass number, it is the total number of protons and neutrons. The bottom number is the atomic number, the number of protons. Atoms of the same element always have the same number of protons. To find…

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