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Abt Atoms
helps me study about Atoms ( chemistry )
Question | Answer |
---|---|
atom | smallest unit of matter |
scientific model | . an idea that allows us to create explanations of how we think some part of the world works. |
scientific evidence | collection of observation that many people have made. everyone agrees on tha same collection of observation. |
mass number | # of protons & # of neutrons. |
atomic number | number of PROTONS in the nucleus of an atom. |
atomic mass | "weight" of mass of a single atom |