Which statement is always true when nuclear fusion occurs?(1 point) The number of protons in the resulting nucleus is double that of a starting nucleus.

The combined number of protons and neutrons remains constant.

The number of protons in the resulting nucleus is less than in each starting nucleus.

The total number of protons and neutrons in each nucleus remains constant.

Use the equation to answer the question.

2/1H+ 2/1H→ 4/2H+energy
Which statement best describes the mass numbers of the atoms in the reaction?

There is one atom with a mass number of 2.

There is one atom with a mass number of 1.

There are two atoms with mass numbers of 1.

There are two atoms with mass numbers of 2.
.

Why would placing two very strong magnets in the middle of two separate balloons provide a good model for nuclear fusion?(1 point)

Some nuclei repel each other and some attract each other, just like two sides of a magnet.

The nucleus is very large compared to the rest of the atom, just like the balloon surrounding the magnet.

The positive charges of the nuclei make it difficult for the nuclei to join, just like the balloons keep the magnets apart.

If the atoms combined, then it would destroy both of them, just like the balloons would be destroyed.

How is the mass number calculated for an atom involved in nuclear fusion?

It is the number of neutrons.
It is the number of electrons
It is the number of protons plus electrons.
It is the number of protons plus neutrons.

Which change will always take place in nuclear fusion?

A nucleus with a greater mass than any of the reactants will be produced.

The total charge will be greater than before the fusion took place.