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Atoms and matter 2

QuestionAnswer
the one or two letters of an elemant that represent that element on the periodic table Symbol
number of protons in the nucleus Atomic number
the average of a proton or neutron each proton or neutron has a mass od one A.M.U Atomic mass unit
the sum of the number of protons and neutrons Mass number
atoms with same atomic number but diffrent atomic mass same number of protons but diffrent number of neutrons Isotopes
Created by: omgwhatup
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