Question

same group element physical and chemical properties are same why ?

Answer 1

Explanation:

Elements in the same group (in the periodic table) have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. ... The number of valence electrons in a particular group remains the same and this they have the same physical and chemical properties.

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Answer 2

Answer:

Same group elements have a similar electronic configuration and hence posses same valency.

We already know that valency decides the properties of an element. Hence elements with same valency have same chemical and physical properties.

Hope this helps you.

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