The ionic radii of trivalent lanthanides $(L a^{3 +}, C e^{3 +}, P r^{3 +} . . . . .)$ decreases with the increasing atomic number.

True

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False

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Solution

The correct option is A True
The ionic radii of trivalent lanthanides $(L a^{3 +}, C e^{3 +}, P r^{3 +} . . . . .)$ decreases with the increasing atomic number due to poor shielding which results in higher effective nuclear charge $Z_{e f f}$ .

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Similar questions

C e^{3 +}, L a^{3 +}, P m^{3 +}

Y b^{3 +}

M^{3 +}

Arrange $C e^{3 +}, L a^{3 +}, P m^{3 +}$ and $Y b^{3 +}$ in increasing order of their ionic radii.

C e^{3 +}, L a^{3 +}, P m^{3 +}

Y b^{3 +}

C e, L a, P m

Y b

+ 3

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