the electronic configuration of a metal m


The electronic configuration of a metal M   is  1s2, 2s2, 2p6, 3s1,   The formula of its oxides will be:

(1) MO                                               

(2) M2O                

(3) M2O2                             

(4) MO2

Ans:  M2

 

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Chemistry: the electronic configuration of a metal m
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