In the following set of elements, one element does not belong to the set. Select this element and explain why it does not belong :
In the following set of elements, one element does not belong to the set. Select this element and explain why it does not belong :
Calcium, Magnesium, Sodium, Beryllium
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Sodium does not belong to the set. This is because all other elements belong to group 2 but sodium belongs to group 1 .
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