NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Application +4 | -1

The element with outer shell electronic configuration

(n-2) f^7(n-1) d^1 n s^2

for

n=6

is ... .

View answer and explanation

Correct option: B

gadolinium

The correct answer is B (gadolinium) because the electronic configuration

(n-2) f^7(n-1) d^1 n s^2

for

n=6

4f^7 5d^1 6s^2

, which corresponds to Gadolinium.

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