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How does metallic and non-metallic character of elements vary down a group in the Modern Periodic Table?

Asked by Topperlearning User 24th July 2017, 3:56 PM
Answered by Expert
Answer:

Metallic character increases down a group due to increase in atomic size. Thus, the outermost electrons are farther away from the nucleus and therefore can be lost easily. Hence, the electropositive character or metallic character increases.

Non-metallic character decreases down a group due to increase in atomic size. Due to increase in size of the atom, its nucleus goes more deep inside the atom and the attraction of nucleus for incoming electrons decreases due to which the atom cannot form negative ions easily and hence, electronegative character or non-metallic character decreases.  

 

Answered by Expert 24th July 2017, 5:56 PM
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