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Essentially all of the atom's mass is in the nucleus.

In the lightest atom, that of hydrogen, it's about 99.95 percent.

In the heaviest naturally occurring atom, that of Uranium238, it's about 99.979 percent.

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Related Questions

Where is the mass found in an atom found?

Most of the mass of an atom is found in the nucleus which contains the protons and neutrons.


Where is the mass in atom?

Most of the mass in an atom is found in the nucleus, which contains the protons and neutrons.


Were is most of the mass of an atom found?

in the nucleus


Where is the most of mass of an atom found?

nucleus


Where is most the mass of an atom called?

The majority of an atom's mass is found in its nucleus, which is located at the center of the atom. The nucleus is composed of protons and neutrons, which are much more massive than the electrons that orbit the nucleus.


Where is the great majority of the mass of the atom found?

The great majority of the mass of an atom is found in the nucleus, where protons and neutrons are located. The nucleus is incredibly dense and accounts for almost all of the atom's mass, while electrons, which are much smaller and lighter, contribute very little to the overall mass of the atom.


Most of the mass of an atom is found in which part of it?

In the nucleus.


Where are the poisitive charge and most of the mass found in an atom?

The positive charge in an atom is found in the nucleus, which contains protons. Most of the mass of an atom is also located in the nucleus, primarily from the protons and neutrons that make it up. Electrons, which are negatively charged, contribute very little to the mass of an atom.


Most of the volume of an atom is taken it up by the and most of the mass of an atom is found in the?

Most of the volume of an atom is taken up by the electron cloud, which surrounds the nucleus and is formed by the movement of electrons. In contrast, most of the mass of an atom is found in the nucleus, which contains protons and neutrons. This concentration of mass in the nucleus is due to the significantly greater mass of these subatomic particles compared to electrons.


Where is most of the mass os an atom found?

In the nucleas. Ray


Who found out that most of an atom's mass is in the nucleus?

Ernest Rutherford


Who found that most of an atom's mass is in the nucleus?

Ernest Rutherford