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Protons and neutrons, the particles that make up atomic nuclei, are the ones responsible for almost all of the mass of an atom. As the electron has less than 1/1800th the mass of a proton, a whole flock of electrons won't significantly change the mass of an atom. We look to the protons and neutrons (called nucleons when they are being considered as components of an atomic nucleus) to contribute to the mass of an atom, and they will be considered when we derive the atom weight of an element.
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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.
Which two particles make up most of the mass of a hydrogen-2 atom?
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.
Which two particles make up the mass of an atom?
. . . the two with (appreciable) mass: protons and neutrons.The atomic mass number of an element is determined by mass of the nucleus of an atom. Therefore the particles that make up the nucleus determine the mass number. These particles are protons and neutrons.The mass of the protons and neutrons do not vary between elements, but the number of each in the nucleus varies between elements and between isotopes of the same element.Protons and neutrons.idk dont asqq meehThe sum of the numbers of protons and neutrons determine the mass number. Electrons have negligible mass compared to protons and neutrons.The particles counted are neutrons and protons each having a relative atomic mass of 1. The atomic number is the number of protons.Atomic mass of an atom is the mass of the nucleus.Hence the atomic mass is the sum of the number of protons an neutrons present in the nucleus of the atom. The electrons are not considered as their mass is negligible compared to the mass of the neutrons and protons.
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.
Which two subatomic particles make up most of the atoms mass?
It is usually considered to be neutrons and protons that hold most of an atom's mass, however there is one theoretical subatomic particle that is used to help explain mass, called the higgs boson particle.
What particles make up most of the mass atom?
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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
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.
What particles in the nucleus of the atom?
The particles in the nucleus of an atom are the protonsand the neutrons. We call particles that make up the atomic nucleus nucleons, and this word is just a way to say "the particles that make up an atom's nucleus" in an abbreviated manner.
Which two particles make up most of the mass of a hydrogen-2 atom?
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.
What sub atomic particles makes up mass of an atom?
Protons and neutrons
What makes up most of the mass of Atom?
protons and neutrons make up most of the mass in an atom
What makes up most of the mass of an atom?
protons and neutrons make up most of the mass in an atom
