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NEETChemistryp Block Elements (Group 13 & 14)

Explain the following: Gallium has higher ionization enthalpy than aluminium.

Options

  1. AGallium has a smaller atomic radius than aluminium
  2. BGallium has a lower effective nuclear charge than aluminium
  3. CGallium has a higher electronegativity than aluminium
  4. DGallium has a higher electron affinity than aluminium

Correct answer

A. Gallium has a smaller atomic radius than aluminium

Step-by-step solution

Correct Option is : (A) Gallium has a smaller atomic radius than aluminium

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