*Correct Answer (1) N

Why:

Electron negativity is the chemical property that quantifies an atoms ability to attract electrons to itself in covalent bonds.  The higher an atoms' electron negativity is the stronger its attraction to electrons would be.  So for this question you simply need to locate Table S and find which element has the highest number.  The correct answer is (1) Nitrogen.

Answering this question:

This should be as straightforward as looking at the chart and choosing the highest electron negativity.  However, if you become unsure of which number to look for, take a logical look at the Table S.  Most of those properties you will recognize such as density and melting point.  Eliminate those that you can, and look for a trend in the others.  For example, though this will not always work, you could confuse electron negativity and ionization energy and obtain the correct answer either way.