The periodic property that is used to determine whether a covalent molecule is polar or not is
- atomic radius
- ionization energy
- electron affinity
-
electronegativity
The correct answer is: D
Explanation
The periodic property that is used to determine whether a covalent molecule is polar or not is electronegativity.
Electronegativity is a measure of the ability of an atom to attract electrons in a chemical bond. The greater the electronegativity of an atom, the more strongly it will attract electrons.