0
the mass of electrons is negligble the pe rcentage of an atom's mass comes from its protons and neutrons
Lewis Treutel
Wiki User
∙ 15y agoNo. Most of the mass (more than 99.9%) is due to the nucleus. No, in fact it is the other way around. The protons and neutrons are the main contributors to the mass of an atom.
For simplicity we (as scientists) consider the mass of a proton to be 1 amu (Atomic Mass unit). The neutron is approximately the same mass as the proton, therefore also 1 amu. The electron, on the other hand, has a mass about 1/1800 amu (or 0.0005486 amu).
So as you can see the protons and neutrons are actually the "heavy" things in the atom.
Wiki User
∙ 15y agoMost of the mass of the atom is found in the nucleus. The nucleus contains the protons and neutron. The rest of the atom is electrons.(and electrons have less than 1/8000 the mass of a proton)
Wiki User
∙ 14y agoBecause electrons have so little mass, almost all of an atom's mass is in the nucleus.
Anonymous
Wiki User
∙ 6y agoNo. Almost all the mass of an atom is in protons and neutrons, in the nucleus.
Wiki User
∙ 13y agoI'm sure it is Nucleus.
Anonymous
Newtron
Add your answer:
Earn +20 pts
Where is most of the mass of an atom contained?
When calculating the mass of an atom, you add the mass of the protons and the neutrons. This is the nucleus of the atom. The electrons are small enough to be ignored except in the most delicate calculations.
True Or False most of an atom's volume is the space in which electrons move?
True, most of an atom's volume is the space in which electrons move.
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 most of the atoms mass found?
An atom's mass is concentrated in its nucleus, which is located in the center of the atom. Protons and neutrons within the nucleus are responsible for its mass; the electrons, which are located outside of the nucleus, don't contribute to the mass of the 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.
Where is most of the mass of an atom contained?
When calculating the mass of an atom, you add the mass of the protons and the neutrons. This is the nucleus of the atom. The electrons are small enough to be ignored except in the most delicate calculations.
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.
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 in the atom is the mass of the atom concentrated?
It is the nucleus. Mass of electrons is too small
Where is the most of the atoms mass 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.
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.
Which electrons have the most energy in an atom?
All electrons in an atom have: * a negative one charge * 1/2 spin * 0.511 MeV of mass
Where can most of the mass in an atom be found?
Most of the mass of an atom is found in the nucleus. The protons and neutrons weigh 1 amu, while the electrons have an almost insignificant weight.
Is the number of electrons the same thing as the atomic mass in an atom?
No, electron count really doesn't have anything much to do with atomic mass. Let's look. Most of the mass of any atom is concentrated in the nucleus. It's the protons and neutrons there that give the atom "weight" and the electrons contribute almost nothing. Additionally, electrons can be loaned or borrowed by atoms, and this changes their mass very little. The number of electrons is not very "connected" to atomic mass of an atom.
Where is the most of the mass in an atom?
Most of the mass in an atom is in the nucleus. The protons and neutrons are about the same weight, 1 amu. The elecrtons are 1/1840 of the mass of an proton. Neutrons are 2000 times heavier than electrons and protons have an equal mass of neutrons
Do electrons make up most of an atom?
Protons and neutrons form the most of the atomic mass.
An element's atomic mass does not include the mass of its?
...electrons, as they account for a negligible mass relative to the atom as a whole (electrons make up 1/1840th of the total mass, to be precise).
