The force of attraction that holds two atoms together within a molecule is called:

• A. an ionic force
• B. a chemical bond
• C. a hydrogen bond
• D. a van der Waals interaction

Answer: (B)

Verified step by step guidance

1. Understand that the question is asking for the name of the force that holds two atoms together within a molecule.
2. Recall that atoms within a molecule are held together by forces that involve sharing or transferring electrons, which are known as chemical bonds.
3. Differentiate chemical bonds from other types of interactions: ionic forces refer to attractions between ions, hydrogen bonds are a specific type of intermolecular attraction involving hydrogen, and van der Waals interactions are weak forces between molecules.
4. Recognize that the term 'chemical bond' specifically describes the force that holds atoms together within a molecule, whether it is covalent or ionic bonding.
5. Conclude that the correct term for the force holding two atoms together within a molecule is a chemical bond.