Chemistry · Periodic Properties
The 'inert pair effect' is best explained by which combination of factors?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Lanthanide contraction making s-electrons more stable
- 2d-orbital participation reducing s-orbital involvement
- 3High ionization energy of s-electrons only
- 4Relativistic contraction of s-orbitals and low bond energies for heavier elements✓
Correct answer
Relativistic contraction of s-orbitals and low bond energies for heavier elements
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