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The nucleus consists of neutrons and protons. One neutron or proton is about 1840 times bigger than an electron, which explains the difference of mass between nucleus and the elecrons. When Atomic Mass is calculated, the mass of the electrons is discounted, due to its relatively insignificant mass.
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∙ 15y ago
Wiki User
∙ 14y ago- protons have the mass of 1 a.m.u.
- neutrons have the mass of 1 a.m.u.
- electrons have almost no mass
and because the nucleus is made up of protons and neutrons. ( the electrons are located outside the nucleus in).
Wiki User
∙ 12y agoThe nucleus holds the protons and the neutrons which both weigh 1 atomic mass unit. The electrons are so light that they are hardly considered when calculating the atomic mass. Therefore, the nucleus is really the only part of the atom that is contributing weight.
Wiki User
∙ 14y agoThe mass of an electron is negligible, something like 1/1023 of the weight of a neutron, hence when dealing with mass electrons can be ignored.
Wiki User
∙ 11y agoBecause the nucleus contains the protons and neutrons, which are about 2000 times more massive than the electrons outside the nucleus.
Wiki User
∙ 10y agoMost of an atom's mass is in the nucleus
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Why is the entire mass of an atom is almost the nucleus?
almost the entire mass of an atom is in the nucleus A proton or a neutron approximately 1840 times heavier than an electron.So weight of electrons is negleteble.
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.
Most of the atom's positive charge and almost all of its mass is located in this region of the atom?
The nucleus.
Where is almost of all of the mass of an atom located?
It is in the nucleus. Electrons are very small
Is the most of the volume of an atom empty space or nucleus?
Most of the atom is empty space (between the electron orbitals and the nucleus itself). If your talking about nucleus vs. electrons then the nucleus is larger in volume and mass
Lost of an atoms mass is in the nucleus?
Almost all of an atom's mass is in the nucleus.
What part of the atom contains most of its mass?
The nucleus, made up of protons and neutrons, contains most of an atom's mass.
Why is the entire mass of an atom is almost the nucleus?
almost the entire mass of an atom is in the nucleus A proton or a neutron approximately 1840 times heavier than an electron.So weight of electrons is negleteble.
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.
Most of the atom's positive charge and almost all of its mass is located in this region of the atom?
The nucleus.
Does the nucleus account for almost all the volume of an atom?
No it does not. It accounts for almost all of the mass, not voloume
What parts of an atom makes up all the mass of an atom?
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.
Where is almost of all of the mass of an atom located?
It is in the nucleus. Electrons are very small
Why atomic mass is concentrated on the center of the atom?
The atom is essentially made out of two main components: the nucleus and the electrons. The nucleus is in the centre of the atom whilst the electrons orbit it from a distance. The mass of the electrons is almost negligible, being almost 2000 times smaller than a proton, which is part of the nucleus. The nucleus, whilst having a minute mass, is still many times greater than the electrons. This is why the mass is concentrated in the centre on the nucleus.
Rutherford said that almost all the mass of an atom is located in its what?
Rutherford discovered in the early 1900s that most of an atom's mass is located in its nucleus.
Is the most of the volume of an atom empty space or nucleus?
Most of the atom is empty space (between the electron orbitals and the nucleus itself). If your talking about nucleus vs. electrons then the nucleus is larger in volume and mass
The mass of an atom is contained primarily in its?
The mass of an atom is contained primarily in its nucleus.
