Aufbau, Hund's, Pauli principles and orbital filling
Learn the rules for filling electrons in orbitals, including the Aufbau principle, Hund's rule, Pauli exclusion principle, and exceptions in configurations.
Why this shows up in the exam
Many questions test your knowledge of electron filling order, exceptions, and the application of these principles.
How NEET tests this
Practise it
These are real questions from past NEET papers that test this exact idea.
Which one is a wrong statement?
Push further
More challenging11 harder questions built from the past papers above — a step up in difficulty, with distractors designed so you can't get there by elimination. Written and checked by our reviewers, not from a real paper.
If the azimuthal quantum number (l) for a subshell is 1, what is the maximum electron capacity of that subshell?
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