Question: (a) Nitrogen has relatively stable isotopes (half-life greater than 1 second) of mass numbers 13, 14, 15, 16, and 17. (All except 14N and 15N

(a) Nitrogen has relatively stable isotopes (half-life greater than 1 second) of mass numbers 13, 14, 15, 16, and 17. (All except 14N and 15N are radioactive.) Calculate how many protons and neutrons are in each of these isotopes of nitrogen.
(b) Write the electronic configurations of the third-row elements shown in the partial periodic table in Figure 1-5.

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a Nitrogen has atomic number 7 so all nitrogen atoms have 7 protons The mass ... View full answer

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