MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryPeriodic PropertiesIonization Enthalpy

The correct order of first ionization potential is

A.K > Na > Li

B.Be > Mg >Ca✓ Correct

C.B > C > N

D.Ge> Si > C

Explanation

Ionization energy is the amount of energy required to remove an electron from an isolated gaseous atom. The trend of ionization energy decreases down the group due to an increase in atomic size and increases from left to right in the period. Therefore, the correct order is Be > Mg > Ca .

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