The highest occupied energy level of the grou | vedclass

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(C) The element with the highest occupied energy level $7s^2$ is Radium $(Ra)$.Group $2$ elements are alkaline earth metals.$A$: Group $2$ elements ex

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Hydroxide of the element will be amphoteric

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(C) The element with the highest occupied energy level $7s^2$ is Radium $(Ra)$.Group $2$ elements are alkaline earth metals.$A$: Group $2$ elements exhibit a $+II$ oxidation state.$B$: Being highly reactive,they react with water to liberate $H_2$ gas.$C$: Hydroxides of group $2$ elements are basic in nature,not amphoteric. As we move down the group,basicity increases.$D$: Thermal stability of carbonates increases down the group,so $RaCO_3$ is more stable than $CaCO_3$.

The highest occupied energy level of the group $2$ elements is $7s^2$. Which of these statements is likely to be incorrect?

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