The unit of electron affinity is:
Correct answer: B. KJmo1-1
- A. Jmo1-1
- B. KJmo1-1
- C. kJ atom-1
- D. J atom-1
Explanation
The correct answer is B) kJ mol^-1. The unit of electron affinity is kilojoules per mole (kJ mol^-1), which represents the energy change when one mole of gaseous atoms gains one mole of electrons to form one mole of gaseous anions.
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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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