Most favourable conditions for the formation of ionic bonds are?
Correct answer: A. large cation and small anion
- A. large cation and small anion
- B. large cation and large anion
- C. small cation and small anion
- D. small cation and large anion
Explanation
Ionic bonds are mainly formed due to the transfer of atoms because of the higher degree of the electrostatic force between the two combining atoms. Atoms with larger sizes have more shielding effect and lower ionization energies hence they are better electron donors. Smaller atoms have less shielding effect thus giving them a higher nuclear charge and increasing the electron affinity. So a large cation and small anion would have the high electrostatic force and are most favored for ionic bonding.
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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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