【简答题】阅读理解。 I went to Ottawa last December. It was my first time to Canada. Because I couldn't go to many places in Ottawa in two days, I learnt a little about the beautiful city. This summer, I went to the...
【单选题】下列配离子中,未成对电子数最多的是
A.
[Cr(NH 3 ) 6 ] 3+ (内轨)
B.
[Mn(H 2 O) 6 ] 3+ (外轨)
D.
[Ni(NH 3 ) 6 ] 2+ (外轨)
【简答题】People always say that the earlier one learns a language, the ___1___ it is to do so, in theory it is that, ___2___, in my opinion, that refers to spoken language. Capability to practise some essentia...
【单选题】下列各对原子中,未成对电子数最多的是()。
【单选题】下列离子的基态电子构型中未成对电子数最多的是()