Why Gallium has smaller size than aluminimum? Explain please ?????????????????????????
veed vardhana , 5 Years ago
Grade 11
Inorganic Chemistry> Why Gallium has smaller size than alumini...
1 Answers
Mayank
Last Activity: 5 Years ago
the size of gallium is smaller (approx 139pm) and that of aluminium is more (approx 145pm) because 3d orbitals start from gallium which has a poor shielding effect due to which the pull of the nucleus becomes more strong and hence the size of gallium decreases........................
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