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Though today we know that an atom is made up of 3 types of sub-atomic particles (electrons,protons and neutrons) but it is found that each electron has a mass very less in comparison to the mass of other particles.So, its mass is taken to be negligible and is not counted to be contributing to mass of entire atom.On other hand, protons and neutrons have noticeable masses and are almost equal to each other in masses.These both are found in nucleus of atom and are considered to be contributing to the mass of the atom.

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15y ago
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6mo ago

Protons and neutrons contribute to the Atomic Mass of an atom. Electrons, despite having mass, contribute negligibly to the overall atomic mass due to their much smaller mass compared to protons and neutrons.

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16y ago

Neutrons and Protons contribute an equal amount (1 Dalton each)

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Q: What subatomic particles contribute to the atomic mass of an atom?
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What are the Subatomic particles with no charges?

Neutrons are subatomic particles with no charge. They are found in the nucleus of an atom along with protons and contribute to the atomic mass of an element without affecting its charge.


Is sodium a subatomic particle?

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Isotopes are caused by variations in the number of neutrons in an atom's nucleus. Neutrons are subatomic particles that do not carry an electric charge and contribute to an atom's mass. The different number of neutrons in isotopes result in variations in atomic mass.


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Protons are the subatomic particles that give an atom its identity. The number of protons in the nucleus determines the element's atomic number, which in turn defines the specific type of atom.


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What of these subatomic particles are represented by atomic number?

Protons are the subatomic particles represented by the atomic number of an element. The atomic number is equal to the number of protons in the nucleus of an atom, which determines the element's identity on the periodic table.


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Which subatomic particles have mass and re included in the calculation of the atomic mass number?

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