What parameter is used to measure the stability of a nucleus?
Average binding energy
No. of protons
No. of neutrons
No. of electrons
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Stability of nucleus is based on average binding energy i.e. binding energy per nucleon. This much energy will be needed for nucleon to break free.
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If the charges of protons and neutrons is switched to negative and positive, will it affect the stability of atoms? justify
What is the sum of protons, electrons and neutrons in the heaviest isotope of hydrogen?
Nuclear binding energy is the energy released during the hypothetical formation of the nucleus by the condensation of individual nucleons. Thus, binding energy per nucleon =Total binding energyNumber of nucleons For example, the mass of hydrogen atom is equal to the sum of the masses of a proton and an electron. For other atoms, the atomic mass is less than the sum of the masses of protons, neutrons and electrons present. This difference in mass, termed as mass defect, is a measure of the binding energy of protons and neutrons in the nucleus. The mass-energy relationship postulated by Einstein is expressed as: ΔE=Δmc2
Where ΔE is the energy liberated, Δm is the loss of mass, and c is the speed of light.
MP and Mn are masses of a proton and a neutron respectively. For a nucleus, its binding energy is B and it contains Z protons and N neutrons, the correct relation for this nucleus if C is velocity of light is:
The parameter used to measure the stability of the nucleus is
The mass of 2He4 nnucleus is 0.03 amu less than the sum of the masses of 2 protons and 2 neutrons. What is the binding energy per nucleon?