Question

Give Reason : Elements in the same group have similar valency and chemical properties​

Answer 1

Explanation:

(i) All the elements of a group have similar chemical properties because they have same no. of valence electrons in their outermost shell. (ii) All the elements of a period have different chemical properties because they have different no. of valence electrons in their atoms.

Answer 2

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➢ All the elements of a group have similar chemical properties because they have same no. of valence electrons in their outermost shell.

➢ All the elements of a period have different chemical properties because they have different no. of valence electrons in their atoms.

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