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An ion `(Mn^(a+))` has the magnetic moment equal to `4.9` B.M` What is the value of (a) :A. `3`B. `4`C. `2`D. `5` |
Answer» Correct Answer - A Magnetic moment ` = sqrt (n(n+2)) = 4.9`, `:. N=4` Thus Mn ion bas four unpaied eelctron `(n) Mn^(3+) : 1s^2 . 2s^2 , 2s^2 2p^y , 3s^2 3p^2 3p^6 3d^4`. |
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