Multiple choice

Why is Gallium more electronegative than aluminium even though electronegativity of the elements decreases down the group?

  1. Due to increase in atomic size

  2. Due to increase in ionization energy

  3. Due to increase in effective nuclear charge

  4. Due to increase in atomic radii

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gallium is more electronegative than aluminium due to increase in effective nuclear charge.