Which statement best explains why the elements in Group 18 do not have electronegativity values?

Question

A. The elements have only one electron
B. The elements have filled valence levels
C. The elements are too large
D. The elements do not have electrons

Answer 1

The statement that best explains why the elements in Group 18 (the noble gases) do not have electronegativity values is:

B. The elements have filled valence levels.

Noble gases have full outer electron shells, making them stable and generally unreactive. As a result, they do not tend to attract additional electrons, which is why they do not have defined electronegativity values.