1.

The correct order of ionic radius of Yb ^(3+), La ^(3+) , Eu ^(3+), Lu ^(3+) is

Answer»

`Yb lt LU lt EU lt LA`
`La lt Eu lt Lu lt Yb `
`Lu lt Eu lt La lt Yb `
`Yb lt La lt Eu lt Lu `

ANSWER :A


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