NEETPeriodic TableHard
Question
Which of the following has the maximum number of unpaired electrons ?
Options
A.Mg2+
B.Ti3+
C.V3+
D.Fe2+
Solution
No. of unparied electrons.
(a) Mg2+ = [He]2s2, 4p6 0
(b) Ti3+ = [Ar]3d1, 4s0 1
(c) V3+ = [Ar]3d2, 4s0 2
(d) Fe2+ = [Ar]3d6, 4s0 4
(a) Mg2+ = [He]2s2, 4p6 0
(b) Ti3+ = [Ar]3d1, 4s0 1
(c) V3+ = [Ar]3d2, 4s0 2
(d) Fe2+ = [Ar]3d6, 4s0 4
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