## Where does the energy that is released in nuclear changes come from?

Nuclear energy comes from tiny mass changes in nuclei as radioactive processes occur. In fission, large nuclei break apart and release energy; in fusion, small nuclei merge together and release energy.

## What is binding energy converted to?

Nuclear binding energy is the energy required to split a nucleus of an atom into its component parts: protons and neutrons, or, collectively, the nucleons. The binding energy of nuclei is always a positive number, since all nuclei require net energy to separate them into individual protons and neutrons.

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Where is the energy stored in nuclear reactions?

nucleus
Of course, nuclear reactors ultimately get their energy from nuclei. This nuclear energy is potential energy stored inside the nucleus of an atom. The protons and neutrons inside of the nucleus are held together by the strong nuclear force, which balances the repulsion of the Coulomb force between the protons.

### How is mass converted to energy in nuclear reactions?

Einstein’s equation helps scientists understand what happens in nuclear reactions and why they produce so much energy. When the nucleus of a radioisotope undergoes fission or fusion in a nuclear reaction, it loses a tiny amount of mass. It is converted to energy.

### What gives the total change in nuclear mass and the change in nuclear binding energy as a result of a nuclear fusion reaction?

Explanation: Nuclear bonds, like the more familiar chemical bonds, require energy input to break them. This means energy is released when they are formed, the energy in stabilising nuclei is derived from the ‘mass defect’. This is the amount of mass difference between a nucleus and the free nucleons used to make it.

How do you find the mass change in a nuclear reaction?

Determining the Energy Change of a Nuclear Reaction Calculate the change in mass by subtracting the combined mass of the reactants from the combined mass of the products, Convert the change in mass into its equivalent change in energy using Einstein’s equation.

#### Where does nuclear binding energy come from?

Nuclear binding energy derives from the nuclear force or residual strong force, which is mediated by three types of mesons. The average nuclear binding energy per nucleon ranges from 2.22452 MeV for hydrogen-2 to 8.7945 MeV for nickel-62.

#### How does nuclear binding energy per nucleon relate to nuclear stability?

When two protons and two neutrons combine to form a helium nucleus, energy is released. This is the total binding energy for the helium nucleus. The binding energy per nucleon, which is the total binding energy divided by the number of nucleons (protons and neutrons), is a good indication of nuclear stability.

How much mass is converted to energy in nuclear fusion?

Fraction of mass converted to energy, result is 0.0037681, less than 0.4\%.

## What happens to binding energy during a nuclear reaction?

The difference in these binding energies appears as the energy released or absorbed in a nuclear reaction. Since binding energy contributes to mass, we say that the difference in the total mass of nuclei on the two sides gets converted into energy or vice-versa.