Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General Single Correct MCQ
Published on: August 12, 2026

Be has, as compared to Mg :

A
less electronegativity
B
more ionisation potential
C
larger atomic radius
D
lower melting point

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The correct answer is:
B

Be is smaller than Mg in size. The valence shell electron is tightly bound with nucleus and therefore, more energy is required to eject out the electron. So Be has higher ionisation energy than that of Mg.

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