(1)属于单质的是:H2 Al Ar
(2)属于金属单质的是:_Al _________________________________________;
(3)属于非金属单质的是:_H2 Ar _________________________________________;
(4)属于稀有气体的是:__Ar ______________...
(1)属于单质的是:H2 Al Ar
(2)属于金属单质的是:_Al _________________________________________;
(3)属于非金属单质的是:_H2 Ar _________________________________________;
(4)属于稀有气体的是:__Ar ______________...