Nucleus of the atom

Select all possible answers:

Which of the following are features of the nucleus of an atom?

• 1. It has relatively great mass compared to the other components of the atom.

• 1. The nucleus is located at the center of the atom.

• 1. The nucleus contains electrons and neutrons.

• 1. The nucleus has a tiny size relative to the total space occupied by the atom.

• 1. The nucleus contains protons and neutrons.

The small, dense region at the center of an atom is the _____.

• proton

• neutron

• nucleus

• electron

What force holds the nucleus together?

• 1. The strong nuclear force between protons and neutrons.

• 1. The weak atomic force between neutrons and electrons.

• 1. The force of attraction between positive and negative particles.

• 1. The force of attraction between the nucleus and electrons.

Overall, the nucleus of an atom has a(n) _____ charge.

• positive

• neutral

• negative

• variable

There is an electrical force of repulsion between _________ in the nucleus.

• electrons

• neutrons

• protons

• mesons