Question

what is the definition of a covalent bond?
o a bond between two atoms
o a bond between two positive ions
o a bond between two negative ions
o a bond between a positive and a negative ion

Explanation:

A covalent bond is formed when atoms share electrons. It is a bond between two atoms. Bonds between positive - positive ions, negative - negative ions, or positive - negative ions are different types of bonds (e.g., metallic, not applicable in this case, and ionic respectively).

Answer:

a bond between two atoms