Which of the following elements belongs to gr | vedclass

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(D) Step $1$: Identify the group and period requirements. Group $2$ elements are alkaline earth metals. The sixth period corresponds to the shell $n =

Vedclass · Accepted Answer

Barium

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(D) Step $1$: Identify the group and period requirements. Group $2$ elements are alkaline earth metals. The sixth period corresponds to the shell $n = 6$.Step $2$: Analyze the options. $Rubidium$ $(Rb)$ is in group $1$, period $5$. $Strontium$ $(Sr)$ is in group $2$, period $5$. $Caesium$ $(Cs)$ is in group $1$, period $6$. $Barium$ $(Ba)$ is in group $2$, period $6$.Step $3$: Conclusion. $Barium$ $(Ba)$ is the element that belongs to group $2$ and period $6$.

Which of the following elements belongs to group $2$ and sixth period of the periodic table?

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