How does number of neutrons affect the stability of nucleus?
How does number of neutrons affect the stability of nucleus?
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The number of neutrons in nucleus has an important role in determining the stability of nucleus. Stability of nucleus is affected by the balance between number of protons and neutrons and the number of nucleons. In lighter elements, the most stable nuclei has roughly equal number of protons and neutrons. For instance, Carbon-12 is the most common isotope of carbon with 6 protons and 6 neutrons.
Most elements exist as a mixture of isotopes in nature. Isotopes are atoms of same elements that have same number of protons but they have different numbers of neutrons. Since the number of neutrons may vary, different isotopes of same element have different atomic masses.
The atomic mass of an element is a weighted average of atomic masses of its isotopes considering their natural abundances. The weighted average is calculated by multiplying atomic mass of every isotope by its natural abundance and then adding these products.
The atomic mass is an average that accounts for different masses and abundances of isotopes that results in a fr
Q = [4 *4.0026 – 15.9994] *931.5 MeV
Q = 10.2 MeV
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