JEE Main 2025 — d and f Block Elements Question with Solution
JEE Main 2025 (22 Jan Shift 2)
Question
Niobium ( Nb ) and ruthenium have " " and " " number of electrons in their respective 4 d orbitals. The value of is ______ -.
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Show full solutionCorrect answer: 11
Correct answer
11
Step-by-step explanation
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This is a previous-year question from JEE Main 2025, 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.