Question

The largest oxidation number exhibited by an element depends on its outer electronic configuration. With which of the following outer electronic configuration. With which of the following outer electronic configurations the element will exhibit largest oxidation number?

• A. $3d^{1}4s^{2}$
• B. $3d^{3}4s^{2}$
• C. $3d^{5}4s^{1}$
• D. $3d^{5}4s^{2}$

Answer 1

Answer: (D)

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

Answer 2

: $3d^{1}4s^{2}$ will exhibit +3, $3d^{3}4s^{2} = 5,3d^{5}4s^{1} = + 6$ and $3d^{5}4s^{2} = 7$ oxidation number.