Answer:
1. element
2. neutrons; the same
3. electrons
4. positive; negative
5. mass number
6. isotopes and atomic masses
7. atomic number
8. nucleus
9. Subatomic
Explanation:
sana makatulong pii
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Answers & Comments
Answer:
1. element
2. neutrons; the same
3. electrons
4. positive; negative
5. mass number
6. isotopes and atomic masses
7. atomic number
8. nucleus
9. Subatomic
Explanation:
sana makatulong pii