Question from ADA Sample Test

[PD3]

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Hello all,

I have a question from the ADA sample test, it is number 68. It reads:

Which of the following properties increases with atomic number among the representative elements of period two?

A. Atomic radius
B. Electronegativity
C. Metallic character
D. Normal boiling point
E. Melting point

It seems to me the question should read decrease with atomic number. Their answer is B. Someone please help.

 

[jwalke34]

Just think about it...if you start in period 2 and move to the right (increase atomic number) you come to F (a representative element). Radius decreases as you move to the right, F has no metallic character, and the other two are just wrong. If it said decreases then A would be right.

 

[PD3]

You're correct. I had a brain block and was only looking at going down the table when it said column 2! I need a break.

Thanks.