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Atoms Kayiba

Atomic mass "weight" or mass of a single atom (the same as mass number, because most of the weight of an atom as found in the nucleus-electrons weight almost nothing).
Atomic number number of protons in the nucleus of an otoms.
Atom THe smallest unit of matter.
Mass numember number of proton+number of neutons.
Scientific Evidence collection of observation that many people have made. Everyone agrees on the same collection of observation.
Scientifc Model an ideas that allows us to create explanations of the world works.
Created by: Kayiba