Energy of an atom in a compound is:
Correct answer: C. Lower than individual atom
- A. Higher than individual atom
- B. Equal to individual atom
- C. Lower than individual atom
- D. Impossible to predict
Explanation
When atoms combine to form a compound, they often release energy in the form of chemical bonds. The energy required to break the individual atoms apart and form the compound is typically greater than the energy released when the atoms come together to form the compound. Therefore, the energy of the atom in a compound is generally lower than that of the individual atom.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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