JEE Main 2022 — D And F Block Elements Question with Solution
From: JEE Main 2022 (Online) 29th June Morning Shift
Question
The electronic configuration of Pt (atomic number 78) is :
Choose an option
Show full solutionCorrect option: A
Correct answer
A[Xe] 4f14 5d9 6s1
Step-by-step explanation
Atomic number of Pt is 78
Electronic configuration is – 78Pt [Xe] 4 f14 5d9 6s1 (Exceptional electronic configuration)
Electronic configuration is – 78Pt [Xe] 4 f14 5d9 6s1 (Exceptional electronic configuration)
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This is a previous-year question from JEE Main 2022, covering the D And F Block Elements 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.