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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesIonization Enthalpy

Amongst the elements with the following electronic configurations which one of them may have the highest ionization energy?

A.[Ne]3s23p3✓ Correct
B.[Ne]3s23p2
C.[Ar]3d104s24p3
D.[Ne]3s23p1
Explanation

In general trend, ionization energy decreases down the group due to an increase in atomic radius and increases from left to right in periods due to a decrease in atomic size. Here, nitrogen (z=15) 2 3 Ne 3s 3p   has the highest ionization energy as per the general trend and half-filled stability of p-orbitals.

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