Identify the metal ions among 
and 
having a spin-only magnetic moment value more than 3.0 BM . The sum of unpaired electrons present in the high spin octahedral complexes formed by those metal ions is 
.
Text Solution
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The spin-only magnetic moment is given by 
, where 
is the number of unpaired electrons.
For 
must be 
(since for 
and for 
).
Electronic configurations and unpaired electrons 
in high spin octahedral complexes:
Metal Ion Configuration 
(BM)
32.87 | ||
22.83 | ||
44.90 | ||
22.83 | ||
22.83 |
The metal ions with 
are 
and 
.
The sum of unpaired electrons for these ions is 
.
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