Question

Fill in the blanks to determine the number of protons and electrons in a nitrogen ion. (consult the periodic table to determine the number of protons in a neutral nitrogen atom.)the n3− ion has _____ protons and _____ electrons.

Answer 1

7 protons
10 electrons

Answer 2

Answer:- 7 protons and 10 electrons.

Solution:- Atomic number for nitrogen atom is 7.

For neutral atom, atomic number = number of protons = number of electrons

An ion is formed if electrons are lost or gained by the neutral atom. Here we have nitride ion where nitrogen has -3 charge. This negative 3 charge indicates the gain of 3 electrons by nitrogen atom. The number of protons remains unchanged, means there are still 7 protons.

electrons for the given ion = 7 + 3 = 10

So, $N^-^3$ ion has 7 protons and 10 electrons.