3. 【題組】
A. How many unpaired electrons are in the following complex ions? The atomic number for Ru, Ni, and V is 44, 28, and 23, respectively. en stands for ethylene diamine. Account for your answer. (6%)
(A) Ru(NH3)62+ (low spin case)
(B)Ni(H2O)62+ (C) V(en)33+
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