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Shanis Attoms

QuestionAnswer
atomic mass the weight of an atom-the same as the mass #
atom the smallest unit of matter-has all the chemical characteristics of an element. Cannot be seen, even with a microscope.
scientific evidence collection of observations that many people have made.
atomic number number of protons in the nucleus of an atom. # of protons= # of electrons. as long as the atom is neutral (has no charge)
mass number a number of protons + the number of neutrons
scientific model an idea that allowsus to create explanations of how we think some part of the world works. similar 2 a THEORY.
Created by: shanie61
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