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19-10-2018
Chemistry

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How many protons and electrons do the following ion have?
a)N-3 (atomic number=7)
Explain how to do it?

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Аноним Аноним

25-10-2018

a) Number of protons = number of electron in the atom = atomic number

So it has 7 protons answer

N-3 has gained 3 electron so number of electrons + 7+3

= 10 answer

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