Isoelectronic species and electronic configuration
Understand isoelectronic species, how to determine electronic configurations for atoms and ions, and the use of noble gas core notation.
Why this shows up in the exam
You will be asked to compare species with the same number of electrons and write their configurations in exams.
How NEET tests this
Practise it
These are real questions from past NEET papers that test this exact idea.
From the following pairs of ions which one is not an iso-electronic pair?
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