MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesIonization Enthalpy
Which of the following has the highest ionization enthalpy?
A.P
B.N✓ Correct
C.As
D.Sb
Explanation
Ionization energy is the amount of energy required to remove an electron from the outermost orbit of an isolated gaseous atom. The trend of ionization energy decreases down the group due to an increase in atomic size. Due to its small size, nitrogen has the highest ionization energy.
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