Question

what is isotones .give examples​

Answer 1

Two nuclides are isotones if they have the same neutron number N, but different proton number Z. For example, boron-12 and carbon-13 nuclei both contain 7 neutrons, and so are isotones. Similarly, 36S, 37Cl, 38Ar, 39K, and 40Ca nuclei are all isotones of 20 because they all contain 20 neutrons.

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Answer 2

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$\huge\underline\mathcal\blue{isotones:}$

Isotone, any of two or more species of atoms or nuclei that have the same number of neutrons

$\bold\green{e.g.}$

chlorine-37 and potassium-39 are isotones, because the nucleus of this species of chlorine consists of 17 protons and 20 neutrons, whereas the nucleus of this species of potassium contains 19 protons and 20 neutrons.

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