The ion that is most stable
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Answer:
n aqueous solution the configuration of the ions are following:
Cr
3+
(21)=3d
3
4s
0
⇒t
2g
3
e
g
0
V
3+
(20)=3d
2
4s
0
⇒t
2g
2
e
g
0
Ti
3+
(19)=3d
1
4s
0
⇒t
2g
1
e
g
0
Mn
3+
(22)=3d
4
4s
0
⇒t
2g
4
e
g
0
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