JEE Main Chemistry question

Ra is placed at the bottom of alkaline earth metals. The element should:

(A)Have the highest atomic volumeCorrect
(B)Possess the minimum density
(C)Be less easily ionizable
(D)Be least electropositive

Answer: (A)

Solution

Being lowest in group 2, radium has the largest atomic radius and hence the highest atomic volume among the alkaline earth metals. It does not have minimum density (heavier elements in a group are typically denser, ruling out B), it is not less easily

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Question ID VK-137969