If the atomic number of an element is $58,$ it will be placed in the periodic table in the
- A$III-B$ group and $6^{th}$ period
- B$IV-B$ group and $6^{th}$ period
- C$V-B$ group and $7^{th}$ period
- Dnone of these
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What are the products formed when lanthanoids $(Ln)$ react with $1$. $H_2O$ and $2$. $N_2$?
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View SolutionState the $E^o$ values of lanthanoids and provide their reactions with the following: $(i)$ $H_2$,$(ii)$ Carbon,$(iii)$ Dilute acid,$(iv)$ Halogens,$(v)$ $O_2$,and $(vi)$ $H_2O$.
The point of dissimilarity between lanthanides and actinides is
Which element from the following lanthanoids has a half-filled $f$-orbital in its observed and expected electronic configuration?
In the lanthanide series,the basicity of the lanthanide hydroxides:
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