37_氧分子(O2)爲順磁性(paramagnetic)。根據分子軌域理論,它含有幾個未成對電子?
(A)0
(B)1
(C)2
(D)3
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統計: A(13), B(4), C(42), D(0), E(0) #1030758
統計: A(13), B(4), C(42), D(0), E(0) #1030758