How would you explain the lower atomic radii of `Ga` as compared to `Al`?A. poor screening effect of d-electrons for the outer electrons from increased nuclear chargeB. increased force of attraction of increased nuclear charge on electronsC. increased ionisation enthalpy of Ga as compared to AlD. anomalous behaviour of Ga.

How would you explain the lower atomic radii of `Ga` as compared to `A

1.	How would you explain the lower atomic radii of `Ga` as compared to `Al`?A. poor screening effect of d-electrons for the outer electrons from increased nuclear chargeB. increased force of attraction of increased nuclear charge on electronsC. increased ionisation enthalpy of Ga as compared to AlD. anomalous behaviour of Ga.
Answer» Correct Answer - A Presence of 10 d-electrons in gallium which have poor screening effect on the outer electrons increases the force of attraction between the outermost electrons and nuclear charge resulting in decreases in atomic radius.

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