In the Following Set of Element, One Element Does Not Belong to the Set. Select this Element and State Why It Does Not Belong: Calcium, Magnesium, Sodium, Beryllium - Science

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In the following set of element, one element does not belong to the set. Select this element and state why it does not belong:
Calcium, Magnesium, Sodium, Beryllium

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Solution

In the given set of elements, i.e., calcium, magnesium, sodium and beryllium, sodium does not belong to the set.  This is because sodium is a group 1 element and the remaining three elements​ belong to group 2. Elements of the same group show similar chemical properties.

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Chapter 5: Periodic Classification Of Elements - Exercise 1 [Page 284]

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Lakhmir Singh Class 10 Chemistry (Science)
Chapter 5 Periodic Classification Of Elements
Exercise 1 | Q 43 | Page 284

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