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The two particles that make up most of the mass of a hydrogen-2 atom are the proton and neutron. The proton has a positive charge and is responsible for defining the element, while the neutron has no charge and helps stabilize the nucleus.
Protons and neutrons account for nearly all the mass of atoms (except hydrogen-1, which does not contain neutrons).
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In Bohr's model which particles make up the most mass of the atom?
In Bohr's model, the most mass of the atom is concentrated in the nucleus, which is made up of protons and neutrons. Electrons, which have significantly less mass, orbit around the nucleus in specific energy levels.
The mass of all particles of an atom added together is its what?
The mass of all particles of an atom added together is its atomic mass. This value is typically expressed in atomic mass units (amu).
Which particles in an atom contribute most to mass of the atom?
Protons and neutrons contribute most to the mass of an atom. Electrons have very low mass compared to protons and neutrons, so their contribution to the overall mass of an atom is negligible.
Which particles account for most of the atoms mass?
Protons and neutrons account for most of an atom's mass. Electrons have a very small mass compared to protons and neutrons.
Which particle has the least mass and where is this particle located in the atom?
The smallest particles that have been discovered and that don't only exist in theory are the quarks. They are what make up protons, neutrons, all kinds of baryons, and a few other categories of particles. But there is a theory of smaller particles that make up quarks, electrons, and other particles that were previously believed to be fundamental (But, again, these particles only exist in theory). These particles are to be called "rishons" if discovered.
What particles make up most of the mass atom?
air,mater
Of the three particles that make up an atom which is the lightest?
The electron is the lightest of the three particles that make up an atom, with a mass of approximately 9.11 x 10^-31 kilograms.
What particles take up most of the mass of an atom?
Protons and neutrons make up most of the mass of an atom. Electrons weigh almost nothing by comparison.
In Bohr's model which particles make up the most mass of the atom?
In Bohr's model, the most mass of the atom is concentrated in the nucleus, which is made up of protons and neutrons. Electrons, which have significantly less mass, orbit around the nucleus in specific energy levels.
Which two particles make up most of the mass of a C-12 atom?
proton and neutron
What particles are used to determined the mass of an atom?
Mass of an atom = mass of protons + mass of neutrons
What are the particles that make a atom including the atomic number and mass number?
The atomic number is the number of protons in an atom (which equal the number of electrons present) The atomic mass is the number of protons+neutrons in an atom
The mass of all particles of an atom added together is its what?
The mass of all particles of an atom added together is its atomic mass. This value is typically expressed in atomic mass units (amu).
Which particles in a atom have a mass of 1?
protons and nuetrons
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.
The part of the atom that is small and dense is?
The nucleus is the small and dense center of an atom. It contains protons and neutrons, which are the subatomic particles that make up the majority of the atom's mass.
Which of the following particles is used to determine the mass of an atom?
Neutrons are used to determine the mass of an atom. By adding the number of protons and neutrons together, the atomic mass of an atom can be calculated.
