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The mass of an atom is mostly in the nucleus. Though electrons that orbit the nucleus also have mass, their masses are so small (each electron is 1/1823th the mass of a proton), the mass of any atom would be 99.9% in the nucleus.

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16y ago

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Related Questions

Where is most of the mass os an atom found?

In the nucleas. Ray


What is the sum number of protons and nuetrons in the nucleas of a atom?

The Mass Number.


What kind of energy does the nucleas of an atom contain?

mass energy and binding energy


What is a nucleas?

A nucleas is something in an atom.


The nucleas of an atom is much larger than the atom yet contains most of its mass true or false?

true


Does an atom have a nucleas?

Yes


Where are the Nuetrons and Protons located in the Atom?

In the nucleas


What do you find in the nucleas of an atom?

protrons, neutrons, electrons


Where are valences in an atom found?

they are the outermost electrons orbiting the nucleas


Where the nucleus of an atom consist?

The nucleus of an atom is located at the center of the atom. It contains protons and neutrons, which are held together by strong nuclear forces. The nucleus makes up the majority of the atom's mass and has a positive charge due to the protons it contains.


What does the nucleas of a calcium atom contain?

It has 20 neutrons and 20 protons.


What are the 3 compounds of an atom?

This question does not seem to make sense in its present wording. If you are asking what are the three basic particles that make up an atom, they are the electron, the proton and the neutron. The protons and neutrons form the nucleas (center) of the atom and are considered to comprise most or all of its weight (mass). The electrons circle around the nucleas in orbits called "shells" and are considered to be responsible for the reactivity of the atom with itself or with other atoms. They contribute nothing, or nearly nothing, to the atomic mass.