The abnormal electron affinity values are associated with:
Correct answer: B. II A, V A
- A. I A
- B. II A, V A
- C. VA, VII A
- D. V A, VIII A
Explanation
The elements of group IIA and VA show abnormally low values in every period of the periodic table. This can be understood from their electronic configurations.
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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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