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mr.murphy stack atom

QuestionAnswer
atomic mass the "weight" of an atom-the same as the mass number
atom the smallest unit of matter
scientific evidence collection of evidouse that many peoplr made
scientific model an idea that allows us to create explanations of how we think some part of the world works.
atomic number number of protons in the nucleus of an atoms
mass number number of protons and number of neutrons
Created by: jamesmurphy
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