Subject - Chemistry:

Basics

MCQ - 325-2511

Question:

First ionization potential of alkaline earth metal is greater than alkali metals because

They are more reactive
They have greater atomic vadii
They have smaller atomic sizes
They have greater atomic vadii

Correct Answer: C

Explanation:

Members of group II have higher ionization energies values as compared to group I because of their smaller size, with electrons being more attracted towards the nucleus of the atoms. Correspondingly they are less electropositive than alkali earth metals.

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