Question

why do isotopes of an element posses identical chemical properties ​

Answer 1

Answer:

This is because isotopes of an element have the same number of electrons as an atom of that element. But they have different number of neutrons which affects the mass number. Mass number determines the physical properties. Hence isotopes have similar chemical properties but different physical properties. They have similar chemical properties because isotopes of an element have the same number of electrons as an atom of that element. The electron arrangement is the same owing to same chemical properties. However they have different numbers of neutrons, which affects the mass number. Mass number determines the physical properties such as boiling/melting/density etc.

Answer 2

Explanation:

this is because electronic configuration of isotopic elements are same and also their valancy,outermost electron are same thus , all chemical properties are same but due to change in number of neutrons in their nucleous leads to change in their masses and thus, their physical properties are same.

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