Question

Arrange the following ions in order of their decreasing ionic radii.
`Li^(o+), K^(o+), Mg^(2+), Al^(3+)`

Answer 1

Correct Answer - NA
`Li^(+) lt Al^(3+) lt Mg^(2+) lt K^(+)`
Size decreases from left ot righ in a period and it increases from to to bottom in a group. Variation is more pronounced in group than in period.