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

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Analyzing +4 | -1

The electronic configuration of four elements are

(i)

[\mathrm{Xe}] 5 s^1

(ii)

[\mathrm{Xe}] 4 f^{14}, 5 d^1, 6 s^2

(iii)

[\mathrm{Ar}] 4 s^2 4 p^5

(iv)

[\mathrm{Ar}] 3 d^7, 4 s^2

Select the incorrect statement about these elements.

View answer and explanation

Correct option: B

(ii) is a

d

-block element

Option B is the incorrect statement. (ii) is an f-block element because the last electron enters the 4f orbital.

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