Lithium and Beryllium are unique in such a way that they have higher charge densities which produce strong polarizing effects due to:
Correct answer: C. Small Size
- A. Non-metal
- B. Solubility
- C. Small Size
- D. Large size
Explanation
Smaller size is the main cause of high charge density and increasing polarizing effect. The polarizing power of a cation is inversely proportional to its size. Smaller is the size of the cation and higher will be its charge density, which means greater concentration of charge on a smaller area. The more will be the charge density, higher will be its polarising power.
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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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