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Which of the subatomic particles has a negative charge is found outside of the nucleus and has almost no mass?
THe electron!
Why doesnt the mass number change when electrons are added or removed?
The mass of an electron is very small, almost negligible, compared to that of a proton or neutron.
Who has the smallest mass electrons protons or neutrons?
Of the neutron, proton, and electron, the electron has the smallest mass.
What is the mass number of an electron?
An electron has a mass of 9.109 X 10-31 kg, approximately 1⁄1840 the mass of a proton. However, the term mass number doesn't apply to electrons, it applies to atomic nuclei. The mass number of a nuclear isotope is the total number of protons and neutrons, together known as nucleons, of the isotope, and is denoted by (A).
When is the mass of an electron regarded as zero?
The mass of an electron is regarded as zero when it is at rest. The mass of an electron or any particle is calculated by using its momentum and its energy. The mass of an electron is related to its momentum which is zero when the electron is not moving. So when the electron is at rest its momentum is zero and thus its mass is zero. When an electron is moving its mass is no longer zero as its momentum is not zero. It is calculated by using the following equation: Mass = Energy / (Speed of Light)2The mass of an electron increases as its energy increases and it increases even more when it is moving at a higher speed. So when the electron is at rest and its momentum is zero its mass is also zero.
Of the electron the neutron and the proton which has almost no mass?
Of the particles you mentioned, the electron has the smallest mass.
What is a subatomic particles with almost no mass?
The electron is the lightest particle in the atom.
How does the mass of the nucleus compare to the mass of the electron?
The nucleus is far more massive than the electron cloud. The mass of the electron cloud is almost negligible compared to that of the nucleus.
What is the mass and speed of beta radiation?
Mass= mass of electron Speed= Almost equal to that of light
How does the mass of the proton compare to the electron?
1.66 X 10 -27 kg (mass of proton)/9.109 X 10 -31 kg (mass of an electron) = 1822 ----------------------the mass of a proton is almost 2000 times the mass of an electron
How much is the mass of electron?
almost nothing 1/1840
Explain why the electron isn't considered when determining the mass of an atom?
because the electron has such a tiny ity bity mass that it adds almost nothing to the atomic mass!
What particle has almost no mass?
The lightest subatomic particle is the electron.
What is negatively charged particles of atoms with almost no mass called?
An Electron
What happens when you add an electron to its mass?
The mass of an electron is almost entirely negligible compared to the mass of an atom. I'm not sure if that's the question you were asking, but you can essentially ignore electron mass when calculating the mass of an atom; an electron's mass is only about 0.0005 amu, so even for the heaviest elements the total mass of the electrons is still a tiny fraction of an amu.
How does the mass of an electron compare to the mass of a whole atom?
yes the mass of an electron is much tinnier fraction of the mass of an atom
Elementary particle that carries a negative charge and almost no mass?
A electron is a subatomic particle outside the nucleus carrying a negative charge and very little mass. Other mass is negligible mass or a negative charge.
