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The elements in Group 2 have similar chemical properties because each atom of these elements has the same
(a) atomic number
(b) mass number
(c) number of electron shells
(d) number of valence electrons

Verified Answer :

The elements in Group 2 have similar chemical properties 'cause they have the same no. of electrons.

Answer;

- (d) number of valence electrons

The elements in Group 2 have similar chemical properties because each atom of these elements has the same number of valence electrons.

Explanation;

-Group 2 elements are also called alkaline earth metals, such as calcium, magnesium, strontium, barium , etc.

-These metals have a valency of two, which means they have two electrons in the outermost energy shell. Therefore; they react by loosing two electrons to form a stable configuration or an octet configuration. They are highly metallic and are good conductors of electricity.

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