Which of the following describes a covalent bond?

Question

It is the exchange of electrons between atoms with an electronegativity difference above 1.7.
It is the exchange of electrons between atoms with an electronegativity difference below 1.7.
It is the sharing of electrons between atoms with an electronegativity difference above 1.7.
It is the sharing of electrons between atoms with an electronegativity difference below 1.7.

Answer 1

A covalent bond is best described as:

It is the sharing of electrons between atoms with an electronegativity difference below 1.7.

Covalent bonds typically form between nonmetals with similar electronegativities, allowing them to share electrons. In contrast, an electronegativity difference of greater than 1.7 usually indicates an ionic bond, where electrons are transferred from one atom to another.