JEE Main Chemistry question
Which is the correct order of ionic sizes? (At. no.: Ce = 58, Sn = 50, Yb = 70 and Lu = 71)
Answer: (C)
Solution
Treating ionic radius as inversely related to atomic (nuclear) number here, the element with the lowest atomic number among the four is Sn (50), giving it the largest radius, while Lu (71), with the highest atomic number, is the smallest; Ce (58) and Yb (70) fall in
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