Which statement is incorrect with reference to inner transition elements?
- AThe oxides of lanthanoids are basic.
- B$Pm$ is a radioactive element among actinoids.
- CThe values of ionisation enthalpy of actinoids are less than the values of ionisation enthalpy of lanthanoids.
- DOnly in the electronic configuration of lanthanoids like $Ce, Gd, Lu$ the electrons are filled in $5d$ orbitals.
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Similar Questions
Determine the correct $(T)$ and incorrect $(F)$ statements from the following:
$(a)$ The symbol for Lanthanum is $La$.
$(b)$ The name of the element $Lu$ is Lanthanum.
$(c)$ The electronic configuration of $La^{3+}$ and $Ce^{4+}$ contains $4f^0$.
$(a)$ The symbol for Lanthanum is $La$.
$(b)$ The name of the element $Lu$ is Lanthanum.
$(c)$ The electronic configuration of $La^{3+}$ and $Ce^{4+}$ contains $4f^0$.
Difficult
View SolutionFrom the list given below,the number of lanthanides which exhibit $+4$ oxidation state in their oxides is: $Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy$
Write the atomic number,name,symbol,and electronic configuration of Actinium and the Actinoids.
Difficult
View SolutionThe transition element ( $\approx 5 \%$ ) present with lanthanoid metal in misch metal is
MediumKCET 2024
View SolutionIdentify the non-radioactive element from the following.
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