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Why does the atomic model keep changing?
2. what subatomic particles of an atom are in the nucleus?
3. where are the electrons located?
4. draw an atomic model below. it should contain 4 levels with full shells.
5. how many valence electrons does iron (fe) have? how do you know?
Answers: 3
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Why does the atomic model keep changing?
2. what subatomic particles of an atom are in...
2. what subatomic particles of an atom are in...
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