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1.67492729(28)×10 kg Is the mass of a neutron whick is actually larger than a proton. Neutrons have no electrical charge so as a extra I have a science joke -A neutron walked into a bar and
asked how much for a drink. The bartender replied, "for you, no charge."
Hope this helps:)
From zaibybaby
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What is the mass of an atomic nucleus?
The hydrogen-1 nucleus is the same as the mass of a proton - since it is a proton. The proton's mass is 1.67×10−27 kg. Other nuclei have several times this mass - up to about 250 times the mass of a hydrogen nucleus.
Do Electrons have weight?
Electrons have a mass of about 9.109389 * 10−31 grams.
What subatomic particle contributes alomst no weight to an atom?
The subatomic particles that contribute most almost no weight to an atom are electrons at various energy levels. Isotopes of the same element differ from each other only by the number of neutrons.
What is the number of neutrons in an atom affects the atomic what?
The number of neutrons in an atom can affect the atomic mass of an atom.
What are the main parts of an electron?
The electron is a fundamental particle with no known substructure: it does not have parts, it is simply an electron.
Why is mass number calculated with only the protons and neutrons and not electrons?
Because the mass of electron is negligible when compared to the mass of protons or neutrons.
What is this element atomic mass?
mass of protons + mass of neutrons present in the element (as the mass of electrons is practically negligible)
What determines the mas of an atom?
The mass of an atom is determined by the combined mass of its protons, neutrons, and electrons. Protons and neutrons are the primary contributors to the mass, while electrons have a negligible mass in comparison.
Where is most of the mass of an atom contain?
in the nucleus of an atom -proton and neutrons , electrons in the orbit has the negligible mass.
What particle contributes a negligible amount to the atomic mass?
There are a number of particles of particularly low mass. Electrons have much less mass than either protons or neutrons, and so are negligible in calculating the mass of an atom. However, electrons are still much heavier than neutrinos or photons, which are even more negligible in mass.
Why don't he include the electron in atoms mass?
when compared to the mass of protons and neutrons, the mass of the electrons is negligible and hence not included in atomic mass.
Why is the atomic mass generally used to refer to just the number of protons and neutrons?
The weight of an electron is negligible compared to that of protons and neutrons.
Which subatomic particles makes up most of the mass off the atom?
The major contribution to the mass of an atom is from protons and neutrons; electrons have a known but negligible mass.
What and what make up the atomic mass?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus of an atom. Protons have a positive charge and neutrons have no charge, contributing to the overall mass of the atom. The number of electrons, which have a negligible mass, is not included in the atomic mass.
Which two particles does the atomic mass number represent?
The atomic mass number represents the total number of protons and neutrons in an atom's nucleus. It does not include the electrons because their mass is negligible compared to protons and neutrons.
What product of nuclear decay has mass but no charge?
Neutrons have no charge, but have mass. This is also true of neutrinos, though the mass is considered negligible for most purposes.
What is the mass of an atom found by?
The mass of an atom is primarily determined by the combined masses of its protons, neutrons, and electrons. Protons and neutrons contribute most of the mass since electrons have negligible mass. The exact mass of an atom can be found by adding up the masses of its protons, neutrons, and electrons.
