1.

Arrange Ce^(3+),La^(3+),Pm^(3+), and Yb^(3+) in increasing order of their ionic radii

Answer»

`YB^(3+) LT PM^(3+) lt CE^(3+) lt La^(3+)`
`Ce^(3+) lt Yb^(3+) lt Pm^(3+) lt La^(3+)`
`Yb^(3+) lt Pm^(3+) lt La^(3+) lt Ce^(3+)`
`La^(3+) lt Ce^(3+) lt Yb^(3+) lt Pm^(3+)`

ANSWER :A


Discussion

No Comment Found