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Q: Why arent the masses of all nuclei integer multiples of the mass of a single nucleon?
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When the atomic masses of different element are expressed in atomic mass unit they are found to be almost integer multiples of that of hydrogen atom why?

all nuclei are made of protons & neutronsprotons & neutrons have almost the same masshydrogen's nucleus is one proton


What has the author A N Antonov written?

A. N. Antonov has written: 'Nucleon correlations in nuclei' -- subject(s): Nuclear structure, Nucleon-nucleon interactions 'Nucleon momentum and density distributions in nuclei' -- subject(s): Angular distribution (Nuclear physics), Angular momentum (Nuclear physics), Nuclear structure


What happens to the mass per nucleon in uranium when it is split into smaller nuclei?

The mass of the nucleon is decreased; the difference is released as energy.


Is the protron a nucleon?

Yes, the proton is a nucleon. The term nucleon is used to speak of component particles of the nucleus of an atom. That means either a proton or a neutron. The term nucleon can be applied to either the proton or neutron when speaking of these particles as building blocks of atomic nuclei. Use the link to the related question below for more information.


What are the process in which nuclei with small masses are combined to form a nucleus with a larger mass?

Combining the nuclei of atoms is called Nuclear Fusion. A reaction that is found in stars.


Who discovered the nucleon?

The nucleon was not "discovered" per se. That's because the term nucleon, which is a derived word coming from nucleus, can be fairly applied to either of the two particles that make up the nucleus of an atom. You already know these particles are the proton and neutron. We don't call either particle a nucleon when that particle is outside the nucleus, but only when they're inside atomic nuclei. Nucleon is actually an umbrella term that isn't "one specific particle or thing" as we know it.


What has the author Michael John Smithson written?

Michael John Smithson has written: 'Five nucleon transfer reactions on some light nuclei'


How does the mass per nucleon in uranium compare with the mass per nucleon in the fission fragments of uranium?

The uranium nucleus has over 200 MeV more mass than the sum of the masses of the fission product nuclei plus the free neutrons emitted. Most of this energy appears as the kinetic energy of those particles and manifests as heat energy. Enough heat energy to cause the air around a bomb to radiate x-rays.


the mass defect for the nucleus of helium is 0.0303 amu what is the binding energy per nucleon for helium in MeV?

For helium the binding energy per nucleon is 28.3/4 = 7.1 MeV. The helium nucleus has a high binding energy per nucleon and is more stable than some of the other nuclei close to it in the periodic table.


What is an electron emitted from an atom into two nuclei with smaller masses is?

its called an isotope c:


What cause different isotopes to have different atomic masses?

Different numbers of neutrons in their nuclei.


What happened in fission when the products have less mass than the starting material?

The binding energy per nucleon varies in different nuclei, being a maximum in the region of iron and nickel, and getting progressively less as the heavier nuclei are approached, Therefore when a uranium nucleus splits into two nuclei of lighter elements, the total binding energy is increased, and this results in a loss of mass. The destroyed mass appears as energy, from the relation E = mc2. You can read more and see the binding energy graph in the link below. It is also evident why fusion of light nuclei like hydrogen also releases energy, as in this part of the graph binding energy increases as the nuclei get heavier.