Verified Solution • 2025–26 Session moderate

QAIPMT-2007-Ch-2329: NEET 2007 Chemistry - Class 11 AIPMT-2007-Ch-2329 Solution: With which of the following electronic configuration an atom…

With which of the following electronic configuration an atom has the lowest ionisation enthalpy?

Multiple Choice Options

A $1s^2 2s^2 2p^3$
B $1s^2 2s^2 2p^5 3s^1$
C $1s^2 2s^2 2p^6$
D $1s^2 2s^2 2p^5$

Step-by-Step Verified Solution

The larger the atomic size, smaller is the value of the ionisation enthalpy. Again higher the screening effect, lesser is the value of ionisation potential, So option(b) has lowest ionisation enthalpy.

Related Learning Resources & Exam Preparation

NEET PYQ Question Bank

Browse year-wise authentic previous years' questions with solutions

Authentic CBT Mock Tests

Simulate official exam environment with live timer and percentile scoring