AP EAMCET · Chemistry · d and f Block Elements

To which group of the periodic table does an element having electronic configuration $[Ar] 3 d^{5} 4 s^{2}$ belong?

A Second
B Fourth
C Seventh
D Third

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Answer & Solution

Correct Answer

(C) Seventh

Step-by-step Solution

Detailed explanation

So according to the question we have to identify the element whose electronic configuration is give in the terms of noble gas So in periodic table the d- block are known as transition element So we know that Mn = Ar3d54s2 So we know that from above electronic…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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To which group of the periodic table does an element having electronic configuration [Ar]3d54 s2 belong?

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To which group of the periodic table does an element having electronic configuration $[Ar] 3 d^{5} 4 s^{2}$ belong?