JEE Main 2021 — Structure Of Atom Question with Solution
From: JEE Main 2021 (Online) 20th July Evening Shift
Question
Outermost electronic configuration of a group 13 element, E, is 4s2, 4p1. The electronic configuration of an element of p-block period-five placed diagonally to element, E is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D[Kr] 4d10 5s2 5p2
Step-by-step explanation
The element E is Ga and the diagonal element of 5th period is having outer electronic configuration will be [Kr] 4d10 5s2 5p2.
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This is a previous-year question from JEE Main 2021, covering the Structure Of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.