How many electrons does n 3-have?

10 electrons

Explanation:

N represents Nitrogen. Nitrogen has an atomic number of 7, this means in ground state it has 7 electrons also.

But N-3, means Nitrogen has gained 3 more electrons. So, we have 10 electrons

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

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