The electronic configuration with the highest ionization enthalpy is :
Option: 1 [Ne] 3s2 3p1
Option: 2 [Ne] 3s2 3p2
Option: 3 [Ne] 3s2 3p3
Option: 4 [Ar] 3d10 4s2 4p3
The electronic configuration with the highest ionization enthalpy is [Ne]3s23p3. On moving down the group, the ionization enthalpy decreases. In a period, on moving from left tor fight, the ionization enthalpy increases.
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