Atomic and Ionic Radius

[nerminanina]

The order of radius sizes for N, O, O^{2− } and F is……
a. N <O < O^{2–} < F
b. N <O^{2–} < O < F
c. O < F <O^{2– }< N
d. N < F <O < O^{2–}
e. F < O< N < O^{2–}