Question 25

Covalent bonds hold the atoms together.

When an atom shares three pairs of electrons with another atom, it forms a covalent bond. This type of bond is characterized by the sharing of electron pairs, which can occur in multiple pairs, as in this case.

A) Ionic

Ionic bonds are formed when electrons are transferred from one atom to another, resulting in the formation of charged ions. This type of bond does not involve the sharing of electron pairs, making it incorrect for the situation described in the question.

B) Covalent

Covalent bonds involve the sharing of electron pairs between atoms. In this scenario, the fact that three pairs of electrons are shared indicates a strong covalent bond, making this option the most accurate and appropriate choice.

C) Hydrogen

Hydrogen bonds are a specific type of weak attraction that occurs between molecules, involving hydrogen atoms bonded to electronegative atoms. This type of interaction does not involve the sharing of electron pairs, thus it does not apply to the bonding described in the question.

D) Electronutral

The term "electronutral" is not a recognized type of chemical bond. It does not refer to a specific bonding type or mechanism in chemistry, rendering this option irrelevant to the question.

Conclusion

Covalent bonds are defined by the sharing of electron pairs, and the question specifically describes a scenario where three pairs are shared between two atoms. All other options fail to accurately describe the type of bonding occurring, as they either involve different mechanisms or are not valid bonding types. Thus, covalent bonding is definitively the correct answer.