Question

What factor causes some combinations or atoms to form ions, and other combinations of atoms to form covalent bonds?

Answer 1

Explanation:

Covalent Bonds

Bonds are formed when valence electrons, the electrons in the outermost electronic “shell” of an atom, interact. The nature of the interaction between the atoms depends on their relative electronegativity.

Answer 2

Explanation:

An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable