What phenomenon is exhibited by an element P37 17 and P35 17​

Isotopy

Explanation:

Isotopes are various forms of atoms of the same element with varying numbers of neutrons. Although all isotopes of an element possess the same atomic number as well as the number of protons, but their atomic weights differ. Chemically, isotopes of the same element have identical characteristics, but nuclear properties differ.

From the given information;

and are called isotopes and the phenomena exhibited between is known as (isotopy)

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