Why is the mass of nucleons more than nucleus?

The binding energy is the energy required to break a nucleus into its constituent protons and neutrons. A system of separated nucleons has a greater mass than a system of bound nucleons. Over two million electron volts are needed to break apart a deuteron into a proton and a neutron.

Why is the mass of nucleus less than the mass of nucleons?

During the formation of a nucleus, the protons and neutrons come closer to a distance of 10-14 m. The energy required for the purpose is spent by the nucleons at the expense of their masses. So mass of the nucleus found is less than the sum of the masses of the individual nucleons.

Is the mass per nucleon of a nucleus greater?

The total mass of a nucleus is less than the total mass of the nucleons that make up the nucleus.

Which have more mass combined nucleus or separate nucleons of that nucleus?

If the nucleons bound in a nucleus are separated apart form each other, the sum of their masses is greater than the mass of the nucleus.

Why the sum of the masses of the individual constituent particles is greater than the mass of the whole nucleus?

Hint: We will use the concept of mass of the nucleus will be the sum of the masses of these constituent nucleons i.e. protons and neutrons. So, after that we would be able to see that because of this nuclear force the sum of the masses of constituent particles of a nucleus is greater than the mass of the nucleus.

Why is this effect more pronounced for the heaviest nuclei?

Why is the number of neutrons greater than the number of protons in stable nuclei having A greater than about 40, and why is this effect more pronounced for the heaviest nuclei? Nuclear charge increases with the increase in the number of protons.

Why the mass of nucleus formed is always less than the mass of its constituent particles?

The mass of the nucleus is always slightly less than the sum of the masses of its constituents protons and neutrons due to the fact that some energy is used up in binding constituent proton and neutrons together within a small volume of nucleus. As a result mass of nucleus is slightly less than its constituents.

Is the mass of an atomic nucleus greater or less than the sum of the masses of the nucleus?

Mass of an atomic nucleus is less than the sum of mass of the individual particles composing it.

Why is the mass of a nucleus less than the total mass of its nucleons and how is this mass difference related to the nuclear binding energy?

The actual mass is always less than the sum of the individual masses of the constituent protons and neutrons because energy is removed when when the nucleus is formed. This energy has mass, which is removed from the total mass of the original particles.

Why do heavy nuclei have more neutrons than protons?

The reason is that protons, being charged particles, repel each other. As you get to heavier elements, with each new proton you add, there is a larger repulsive force. As the nuclei get larger, the neutron well gets deeper as compared to the proton well and you get more neutrons than protons.

What is the difference between the mass of the atom and the sum of the masses of its parts?

Careful measurements have shown that the mass of a particular atom is always slightly less than the sum of the masses of the individual neutrons, protons, and electrons of which the atom consists. The difference between the mass of the atom and the sum of the masses of its parts is called the mass defect (Δm).