Which is the correct increasing order of ionization energies... | Chemistry | SolveeIt

Question

Which is the correct increasing order of ionization energies?

$N < O < F$

$F < O < N$

$N < F < O$

$O < N < F$

Answer

$O < N < F$

Explanation

Solution

The ionisation energy, in a period increases from left to right, hence, the increasing order should be N < O < F. But the actual order is O < N < F. The ionisation energy of nitrogen is greater than that of oxygen due to stabler electronic configuration of N ( $2{{p}^{3}},$ half-filled p-orbital).

Chemistry Question on trends in periodic table

Solution