if the radius of La3+[Z=57] is 1.06 then what may be the radius of Lu3+[Z=71]

Answers (1)

Lanthanum is 1st element and Lu is last one element of lanthanoids (4f block element of inner transition elements).. In lanthanoids, the atomic and ionic radii decreases with increase in atomic no. It is called as lanthanoid contraction given options has only 0.85A with required conditions.

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