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The nucleus is the part of an atom that contains practically all its mass. In the nucleus, you can find the proton and neutron. The number of electrons, which move about the nucleus, is equal to the number of protons.
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∙ 9y ago
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∙ 13y agoThe atomic nucleus makes up most of the atom's mass. The nucleus contains the Protons and Neutrons and make up 99.999% of the mass of an atom.
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∙ 15y agoAlmost all of the mass of an atom is in its nucleus; almost all of the volume of an atom is occupied by electrons.
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∙ 11y agoprotons and neutrons make up most of the mass in an atom
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∙ 10y agoProtons and neutrons, because the mass of electrons is very insignificant - 1/1840 in relation to protons and neutrons, which are both 1 each.
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∙ 13y agoThe neutron makes up most of the mass.
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∙ 11y agoThe Neutral Substance
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∙ 13y agothe nucleus
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What particles make up most of the mass of an atom.What makes up mot of te volume of an atom?
An electron weighs about 1/1836 of a proton, so as far as an atom is concerned, all the mass is in the nucleus, with the protons and neutrons. But the electrons are rotating in their orbits a long way (in proton size terms) from the nucleus. So most of the volume of an atom is empty space.
Where is all the mass of an atom concentrated in?
The nucleus.
The mass of all particles of an atom added together is its what?
The sum of protons and neutrons in an atom is called mass number.
What part of an atom do you find protons?
There are two main parts of an atom. The one that contains the most mass is the nucleus, which holds all of the protons and neutrons in a ball at the center of the atom. The second part is the cloud of electrons that orbit the nucleus. So, protons are found in the nucleus of an atom.
In the atom nearly all the mass is found in the what?
An atom is comprised of protons, neutrons, and electrons. The electrons take up the most space as they orbit the nucleus. But nearly all of the mass of the atom is found in the nucleus of the protons and neutrons.
What makes up nearly all of atom mass?
The nucleolus.
How does the mass of the nucleus compared to the mass of the Atom?
The mass of the nucleus makes up most all of the mass of an atom. The only things outside the nucleus are the electrons. The mass of an electron is ~9.11E-31 kg. The mass of an electron is 1/1836 that of a proton.
What makes up nearly all of the atom's mass?
The sum of all Protons and Neutrons.
Which region of an atom has no mass?
Almost all of the volume of an atom has no mass.
All of the mass of an atom is due to the?
The mass of an atom is the sum of the masses of protons, neutrons and electrons.
What is the mass of an atom concentrated on?
virtually all the mass in concentrated in the nucleus of the atom, as the electron's mass is so small, it is negligible.
What part of the nucleus determine the atomic mass for an element?
All parts of the nucleus, protons and neutrons if any, contribute to the atomic mass. The total number of protons and neutrons in an atom is its isotope mass number.
what makes nearly all of the atom's mass?
The nucleolus.
Where is almost all of the mass in an atom is located?
Approximately all of the atom's mass is in the nucleus. The electrons contribute almost zero.No atom has more than 100 electrons, but eachproton or neutron in the nucleushas the mass of more than 1,800 electrons.
Where is all the mass of an atom concentrated in?
The nucleus.
What particles make up most of the mass of an atom.What makes up mot of te volume of an atom?
An electron weighs about 1/1836 of a proton, so as far as an atom is concerned, all the mass is in the nucleus, with the protons and neutrons. But the electrons are rotating in their orbits a long way (in proton size terms) from the nucleus. So most of the volume of an atom is empty space.
What is contained in the nucleus of a atom?
Protons and neutrons. Virtually all of the atom's mass.
