Nearly all the mass is in the nucleus; however, the bulk of an atom's volume is empty space.
No, a proton is a subatomic particle that is found in the nucleus of an atom. The majority of the volume of an atom is made up of the empty space surrounding the nucleus, where the electrons are found.
An atom is made up of protons and neutrons in a nucleus surrounded by electrons in orbital shells. The majority of the volume however, is empty space.
The atom is made up of the nucleus (neutrons and protons) and electrons.
Space
mass
The nucleus contains the mass.
The majority of the volume in an atom is filled by the neutrons and the protons. Although the electrons do have a volume, they occupy significantly less space than the other two subatomic particles
The basic particle of an element is called an atom. Each atom is made up of protons, neutrons, and electrons.
The central nucleus and the almost empty space around it containing electrons
The majority of an atom's mass is concentrated in its nucleus, which is composed of protons and neutrons. Protons have a positive charge and neutrons have no charge, together making up nearly all of the atom's mass. In contrast, the electrons, which orbit the nucleus, contribute very little to the overall mass of the atom. Thus, while the nucleus is small relative to the entire atom, it contains the vast majority of its mass.
No region has all the weight, but the vast majority of the mass of an atom is in the nucleus.
The definition of an atom is that is the smallest possible particle of ONE element. I think you meant to ask "What is a substance that is made of two or more elements." The answer to this question is, "A compound".