Which of the following is not true of polar covalent bonds? (pf)

a. polar covalent bonds exist between atoms of the same element.
b. polar covalent bonds create two poles across the bond.
c. polar covalent bonds result from the unequal sharing of electrons.
d. electronegativity differences for atoms with polar covalent bonds range between 0.5 and 2.0

A. Polar covalent bonds exist between atoms of the same element.

Explanation:

Because we have a bond between the two atoms of the same element, the difference of the electronegativity between two elements is zero thus the electron density is equally shared by the atoms so the bond will be a non-polar covalent one.

i'm pretty sure it is letter c.) car

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.