protrons Word Scramble
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Question | Answer |
atoms | ............................................................................................................smallest unit of matter |
scientific modle | an idea that us to creat explanations of how we think some part of the world works. similar to a theory. |
scientific evidence | collection of observation that many people have made. everyone agrees on the same collection of observations. |
atomic numbers | number of protons in the nucleous of an atom |
mass numbers | number of protons + number of neutrons |
atomic mass | "weight" or mass of single atom the same as mass number because most of the weight of an atom is founded in the nucleous eletrons weigh almost nothing |
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