None
Even electrons have weight
No region has all the weight, but the vast majority of the mass of an atom is in the nucleus.
That region is called the nucleus of the atom.
The weight of an atom is primarily determined by the total number of protons and neutrons in its nucleus. Electrons, which have negligible mass, also contribute to the atom's weight but to a much smaller extent.
The region of an atom in which the electrons move is called the electron shell, or electron cloud.
Almost all of the volume of an atom has no mass.
No region has all the weight, but the vast majority of the mass of an atom is in the nucleus.
That region is called the nucleus of the atom.
The weight of an atom is primarily determined by the total number of protons and neutrons in its nucleus. Electrons, which have negligible mass, also contribute to the atom's weight but to a much smaller extent.
The region of an atom in which the electrons move is called the electron shell, or electron cloud.
atom<cell
The region between the nucleus and the electrons in an atom is called the electron cloud.
The Nucleus
An atom of oxygen has twice the weight of an atom of nitrogen since the atomic weight of nitrogen is around 14 amu (atomic mass units), while the atomic weight of oxygen is around 16 amu.
Almost all of the volume of an atom has no mass.
The "hub" of an atom is known as a nucleus, which is dense region in the center of an atom that contains protons and neutrons.
electrons
nucleus