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  • The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds :Option: 1 <

The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds :

Option: 1

3d^{5}4s^{2}


Option: 2

3d^{8}4s^{2}


Option: 3

3d^{7}4s^{2}


Option: 4

3d^{6}4s^{2}


Answers (1)

best_answer

The maximum number of oxidation states a given transition metal is (generally) the number of unpaired d-orbitals plus the 2 s-orbital electrons. This then finds the transition elements with the higher numbers of oxidation states in the middle of the transition series.

For the question presented & written in order of Aufbau Diagram:

4s1 3d5 => 4s↑ 3d ↑↑↑↑↑ => 6 oxidation states
4s2 3d5 => 4s↑↓ 3d ↑↑↑↑↑ => 7 oxidation states
4s2 3d2 => 4s↑↓ 3d ↑↑ => 4 oxidation states
4s2 3d3 => 4s↑↓ 3d ↑↑↑ => 5 oxidation states

Posted by

HARSH KANKARIA

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