Question
Chemistry Question on Structure of atom
For N3−>O2−>F−andNa+, the order in which their ionic radii varies is
A
N3−>O2−>F−>Na+
B
N2−>Na+>O2−>F−
C
Na+>O2−>N3−>F−
D
O2−>F−>Na+>N3−
Answer
N3−>O2−>F−>Na+
Explanation
Solution
N3−,O2−,F− and Na+ are all isoelectronic species. As the atomic number increases, nuclear attraction increases, hence the order of ionic radii
N3−>O2−>F−>Na+