1. c) total number of protons and neutrons
2. b)neutrons / protons
3. c) Br, I and Cl
4. d) 8
5. c) valence electrons
I think this is the answer........I hope it helps u
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Answers & Comments
1. c) total number of protons and neutrons
2. b)neutrons / protons
3. c) Br, I and Cl
4. d) 8
5. c) valence electrons
I think this is the answer........I hope it helps u