The elements in which electrons are progressively filled in $4f$ orbital are called
- ALanthanoids
- BHalogens
- CActinoids
- DTransition elements
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Similar Questions
Amongst the given elements,which one exhibits a $+4$ oxidation state in an aqueous medium?
Easy
View SolutionWhat are the formulae of the compounds formed when lanthanoids $(Ln)$ react with nitrogen and halogen respectively?
The correct statement is
The pair of lanthanides in which both elements have high third-ionization energy is:
Consider the following two statements:
$Statement-I:$ Among $Mg, Al, Mg^{2+}, Al^{3+}$,the one having the smallest size is $Al^{3+}$.
$Statement-II:$ $Eu$ has an exceptionally high atomic radius among lanthanide elements.
The correct answer is:
$Statement-I:$ Among $Mg, Al, Mg^{2+}, Al^{3+}$,the one having the smallest size is $Al^{3+}$.
$Statement-II:$ $Eu$ has an exceptionally high atomic radius among lanthanide elements.
The correct answer is:
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