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During the fusion process in the sun’s core, when four hydrogen nuclei fuse to form one helium nucleus.A. The mass of helium is less than the mass of four hydrogen atomsB. The missing mass is converted into energyC. An isotope He-3 is produced in an intermediate stepD. All statements are correct



Answer :

The answer is D.

This comes from the folliwing facts:

In the first step of the fusion two protons combined and one of them converts into a neutron, this makes a deuterium istope.

Next the deuterium combined with another proton to make an He-3 isotope.

Finally two He-3 isotopes combined to form a He-4 isotope.

This means that overall four protons are combined to form one helium nucleus, real

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