Q. 18

Arrange the following elements in the order of their increasing nonmetallic character: Li, O, C, Be, F
A. F < O < C < Be < Li

B. Li < Be < C < O< F

C. F < O < C < Be < Li

D. F < O < Be < C < Li


Answer :

Non-metallic character increases on going from left to right in a period. This is due to decreased atomic size which increases the tendency of an element to gain electrons. Non-metallic character decreases on moving down a group.

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