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chem-v

VOCAB

QuestionAnswer
atom smallest unit of matter that has all the properties of matter
scientific model an idea that allow us to create explanations of how we think of some parts of th world
sientific evidence collections of observations that many people have made
atomic number he number of protons is the nucleus of an atom
mass number the number of protons + number of neutrons
atomic mass same as the mass number "weight"
Created by: andres.
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