Question

What is the example of stability of elements?​

Answer 1

Answer:

Nuclei with magic numbers of both protons and neutrons are said to be “doubly magic” and are even more stable. Examples of elements with doubly magic nuclei are 42He, with 2 protons and 2 neutrons, and 20882Pb, with 82 protons and 126 neutrons, which is the heaviest known stable isotope of any element.

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Answer 2

Answer:

As the atomic number increases, the stable neutron-proton ratio gradually increases to about 1.5:1 for the heaviest known elements