1.

What is the correct order of ionic size of lanthanoide ions ?

Answer»

`Lu ^(3+) GT Tb ^(3+) gt Sm ^(3+) gt La ^(3+)`
`Lu ^(3+) LT Tb ^(3+) Sm ^(3+) lt La ^(3+)`
`Lu^(3+) lt Sm ^(3+) lt Tb ^(3+) lt La ^(3+)`
`Sm ^(3+) lt Lu ^(3+) lt Tb ^(3+) lt La ^(3+)`

ANSWER :B


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