September 2021 1 27 Report
Расположите в порядке уменьшения неметаллические свойства химические элементы : 1-бор,2-кремний,3-азот,4-углерод,5-фосфор:
1. 3,4,2,5,1
2 5,1,2,4,3
3 3,4,5,1,2
4 3,5,4,3,1
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