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NEETChemistryp Block Elements (Group 13 & 14)

What is the reason for the small increase in covalent radius from Si to Pb?

Options

  1. AThe presence of completely filled d and f orbitals
  2. BThe absence of completely filled d and f orbitals
  3. CThe presence of completely filled s and p orbitals
  4. DThe increase in atomic number

Correct answer

A. The presence of completely filled d and f orbitals

Step-by-step solution

The small increase in radius from Si to Pb is due to the presence of completely filled d and f orbitals.

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