12.氧分子具有顺磁性可归因于( )
A.沸点极低
B.与铁易化合
C.有三电子π键
D.键级为2
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爱课作业12题
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12.氧分子具有顺磁性可归因于( )
A.沸点极低
B.与铁易化合
C.有三电子π键
D.键级为2