Considering the elements B, C, N, F and Si, the correct order of their non-metallic character is

Considering the elements B, C, N, F and Si, the correct order of their

1.	Considering the elements B, C, N, F and Si, the correct order of their non-metallic character is
Answer» B >C>SI>F>Si Si >C >B >N>F F>N>C>B>Si F>N>C>Si>B Solution :In a period, the non-metallic character increases from left to right. THUS, among B, C, N and F, non-metallic character decreases in the order: FgtNgtCgtB. HOWEVER, within a group, non-metallic character decreases from top to bottom. Thus, C is more non-metallic than Si. Therefore, the correct sequence of decreasing non-metallic character is: FgtNgtCgtBgtSi, i.e., option (c) is correct.