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which is more stable chromium+3 or manganese +3 and why

which is more stable chromium+3 or manganese +3 and why
 

Grade:12

1 Answers

Umakant biswal
5359 Points
4 years ago
@ dashampreet 
chromium +3 is more stable . the reason is below 
1- the ground state config of cr is Ar 3d5 4s1 , and once it had attended config of +3 , its configuration will become . Ar 3d3 
this makes it half filled stable in t2g level . 
half filled t2g state is more stable than d5 config . 
so, cr is more stable in its d3 state . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

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