What is a polar molecule? A. A molecule with symmetrical polar covalent bonds

B. A molecule with symmetrical nonpolar covalent bonds

C. A molecule with a negative pole and a positive pole

D. A molecule with two atoms of the same electronegativity

Explanation:

A molecule with a negative pole and a positive pole is called a polar molecule.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.