30. How many protons are there in Po-209? a. 84 b. 125 С. 123 d. 209 31. How many protons are there in Si-28? a. 10 b. 12 С. 14 d. 28 32. How many neutrons are there in Hg-196? 80 b. 116 С. 196 f oblorine (C) if it has 16 electrons? a. d. 201

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Q: What I still pass 15 protons 15 electrons and 17 neutrons?

A: Isotope:

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