Science & Technology·Prelims Questions
Electronic Configuration — Prelims Questions
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Version 1Updated 9 Mar 2026
Q1medium
Which of the following elements has an exceptional electronic configuration due to the stability of a half-filled d-subshell?
Q2medium
Consider the electronic configuration of the Fe²⁺ ion. Which of the following is correct?
Q3easy
According to Hund's Rule of Maximum Multiplicity, how would the 2p orbitals of a Nitrogen atom (Z=7) be filled?
Q4medium
Which of the following statements about the Aufbau principle is INCORRECT?
Q5hard
The electronic configuration of an element is [Ar] 3d¹⁰4s². To which block and group of the periodic table does this element belong?
Q6medium
Which of the following quantum numbers is NOT directly related to the shape of an atomic orbital?