Question

Identify the correct sentence below that describes the location of the mass and volume within an atom :

1. The electron takes up most of the volume in the nucleus and the protons and neutrons occupy mass in the electron cloud.
2. The electron takes up most of the volume in the nucleus and the protons and neutrons occupy mass in the electron cloud.
3. The protons and neutrons occupy the most mass and the electron cloud create the most volume.
4. The protons and neutrons occupy the most mass and the electron cloud create the most volume.
5. The electrons take up the most mass and the protons and neutrons create the most volume.

Answer 1

The nucleus of an atom contains most of the mass, while electrons reside in a diffuse cloud surrounding the nucleus.

Step-by-step explanation:

The correct sentence that describes the location of mass and volume within an atom is:

Atomic theory places the neutron and the proton in the center of the atom in the nucleus. In an atom, the nucleus is very small, very dense, carries a positive charge (from the protons) and contains virtually all of the mass of the atom. Electrons are placed in a diffuse cloud surrounding the nucleus. The electron cloud carries a net negative charge (from the charge on the electrons) and in a neutral atom there are always as many electrons in this cloud as there are protons in the nucleus (the positive charges in the nucleus are balanced by the negative charges of the electrons, making the atom neutral).