Question

What parts make up the nucleus?

Answer 1

Protons and neutrons

Explanation:

The standard, simple model of an atom is just a bunch of packed balls, called neutrons and protons, tightly packed together due to the strong force in a region called the nucleus. Outside the empty space, electrons orbit the atom in electron clouds, which are regions where electrons are likely to be found, called orbitals.

Have a look here:

The nucleus is made up of protons, the positively-charged particles, and neutrons, the neutrally-charged particles, which have a net zero charge.