Why do atoms bond together?

• A. To increase their atomic number
• B. To lose all of their electrons
• C. To become radioactive
• D. To achieve a more stable electron configuration, often by attaining a full valence shell

Answer: (D)

Verified step by step guidance

1. Understand that atoms bond together primarily to achieve greater stability.
2. Recall that atoms are most stable when they have a full valence shell of electrons, which is often the configuration of noble gases.
3. Recognize that bonding allows atoms to share, lose, or gain electrons to complete their outermost electron shell.
4. Note that this process does not change the atomic number of the atoms involved, nor does it make them radioactive.
5. Conclude that the driving force behind bonding is the attainment of a more stable electron configuration.