Which of the following must happen in order for atoms to bond either ionically or covalently with one another?aThe valence shells of all atoms must be filled after the bonding occursbThe chemical properties of the atoms must be satisfiedcThe ions must have different chargesdThe resulting compound must follow ionic naming conventions

For atoms to bond either ionically or covalently with one another, the key requirement is:

**a. The valence shells of all atoms must be filled after the bonding occurs.**

This principle is rooted in the octet rule, which states that atoms tend to bond in such a way that each atom has eight electrons in its valence shell, achieving a stable electronic configuration similar to that of noble gases.

Here's a brief evaluation of the other options:

- **b. The chemical properties of the atoms must be satisfied.** This statement is vague and not a definitive requirement for bonding.

- **c. The ions must have different charges.** This is specific to ionic bonding; while it is true for ionic compounds that form through the attraction of oppositely charged ions, it doesn't apply to covalent bonding.

- **d. The resulting compound must follow ionic naming conventions.** This is specific to ionic compounds and is not a requirement for all types of bonding, including covalent bonding.

Thus, option ** is the most accurate and general requirement for bonding.