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Outermost electronic configuration of a group 13 element, E, is 4s² 4p¹. The electronic configuration of an element of p-block periodic table placed diagonally to element E is:

1. [Kr] 3d¹⁰ 4s² 4p²
2. [Ar] 3d¹⁰ 4s² 4p²
3. [Xe] 5d¹⁰ 6s² 6p²
4. [Kr] 4d¹⁰ 5s² 5p²

Correct answer: [Kr] 4d¹⁰ 5s² 5p²

Solution

The correct option represents an element in the same group as element E but in the next period, following the diagonal relationship in the periodic table. This means it has a similar outermost electronic configuration with an increase in principal quantum number, which is consistent with the properties of elements in the p-block.

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