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atoms713
atom vocabulary
| Question | Answer |
|---|---|
| Atom | the amallest unit of an element |
| scientific model | an idea that allow us to creat explanations of how we think some part the world work. |
| atomic number | number of protons in an atoms nucleus |
| scientific evidence | collection of observation that many people have made. |
| mass number | total of protons plus neutrons |
| atomic mass | weight or mass of a single atom. |