TS EAMCET 4 May 2018 Shift 2 Solved Paper

Atomic mass of nitrogen is 14.
Atomic number of nitrogen is 7 .
The number of neutron's =14−7=7
The number of protons is equal to the atomic number.
The nitrogen has 3 negative electrons with it.
Therefore, the total number of electron in the given ion
=7+3=10