JEE Main 2022 — D And F Block Elements Question with Solution
From: JEE Main 2022 (Online) 28th July Evening Shift
Question
Which of the following pair is not isoelectronic species?
(At. no. Sm, 62; Er, 68; Yb, 70; Lu, 71; Eu, 63; Tb, 65; Tm, 69)
Choose an option
Show full solutionCorrect option: A
Correct answer
A and
Step-by-step explanation
Species having same number of electrons are isoelectronic
not isoelectronic
not isoelectronic
not isoelectronic
not isoelectronic
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