Practice question
Question
Arrange the following in order of increasing ionization enthalpy: Be, B, Li.
Explanation
Li (lowest, ns¹) < B (3p electron removed) < Be (highest, stable 2s²) due to stability and nuclear charge effects. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
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