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Class 11
Chemistry
Classification of Elements and Periodicity in Properties
considering the elements b c n f and si the c...

Question:
Considering the elements B, C, N, F, and Si, the correct order of their non-metallic character is:
(a) B > C > Si > N > F
b) Si > C > B > N > F
(c) F > N > C > B > Si
d) F > N > C > Si > B

Answer:

Boron is a p block element and is present in 13^th group and 2^nd period, carbon is a p block element and is present in 14^th group and 2^nd period, silicon is a p block element present in 14^th group and 3^rd period, nitrogen is p block element and belongs to 15^th group and 2^nd period while fluorine is also a p block element present in 17^th group and 2^nd period.The non-metallic character of elements increases from left to right across a period. Thus, the decreasing order of non-metallic character is F > N > C > B.Again, the non-metallic character of elements decreases down a group. Thus, the decreasing order of non-metallic characters of C and Si are C > Si. However, Si is less non-metallic than B i.e., B > Si. Hence, the correct order of their non-metallic characters is

F > N > C > B > Si.

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Question:
Considering the elements B, C, N, F, and Si, the correct order of their non-metallic character is:
(a) B > C > Si > N > F
b) Si > C > B > N > F
(c) F > N > C > B > Si
d) F > N > C > Si > B

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Question: Considering the elements B, C, N, F, and Si, the correct order of their non-metallic character is: (a) B > C > Si > N > F b) Si > C > B > N > F (c) F > N > C > B > Si d) F > N > C > Si > B

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Question:
Considering the elements B, C, N, F, and Si, the correct order of their non-metallic character is:
(a) B > C > Si > N > F
b) Si > C > B > N > F
(c) F > N > C > B > Si
d) F > N > C > Si > B