作者yiso (myiso)
看板TransBioChem
标题Re: [普化] 请问一个问题
时间Tue Apr 26 15:43:21 2005
※ 引述《jas3 (...)》之铭言:
: In which of the following diatomic molecular would the bond strength
: be expected to weaken as an electron is removed to form the positive
: charged ion ? why ?
: a. H2 b. N2 c. B2 d. OF
: 谢谢您 ~ ~
其实这题是考双原子分子的MO,并由键级(bond order)判断键能
bond order越大,键能越强
未移走电子前(中性) 移走电子後(带正电)
H2 1 1/2
N2 3 5/2
B2 1 1/2
OF 3/2 2
所以移走电子後会减弱键能的:H2,N2,B2
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