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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).
An electron does not have a mass number because it is an elementary particle with a mass of approximately 9.11 x 10^-31 kilograms.
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What particle has the lowest mass number?
The particle with the lowest mass number is the electron, which has a mass number of 0. This is because electrons are considered to be fundamental particles and do not consist of smaller subatomic particles like protons and neutrons.
Is the mass number equal to the number of protons and electrons?
No, it isn't. The mass of an electron is significantly smaller than that of a proton.The mass of 1,800 electrons is about the same as the mass of one single proton.The antiparticle of the electron, the positron, has the same mass as the electron.the mass of the electron is not the same to the mass of the proton
What happens to the mass number of a nucleus when it emits an electron?
When a nucleus emits an electron (beta decay), the mass number stays the same because an electron has very little mass compared to a nucleon. However, the atomic number increases by one as a neutron is converted into a proton during the decay process.
Which subatomic particle has the smallest mass alpha particle neutron electron proton?
among these Electron has the least mass....
Is the mass of an electron one hundredth the mass of a proton?
No, the mass of an electron is roughly 1/1836 the mass of a proton.
What is an electron's atomic mass number?
The electron has no atomic mass number. The mass of an electron is roughly 1/1800 of the mass of a proton or neutron.
Mass number of an electron?
The mass number of an electron is 5.485 799 095 x 10-4 amu.
What electron has the mass number of 2?
Electrons dosn't have a mass number. The mass of the electron is 9,10938291(40)×10−31 kg.
What is the number of atomic mass in an atom?
Relative mass number of an electron is 0
What particle has the lowest mass number?
The particle with the lowest mass number is the electron, which has a mass number of 0. This is because electrons are considered to be fundamental particles and do not consist of smaller subatomic particles like protons and neutrons.
Is difference of mass number is calculated by electron microscope?
no, the mass spectrometer.
Why does the mass number exclude the mass of an electron?
Because the electron is so light that modern technology is not advanced enough to measure it.
What is the difference between isobar and isotope?
isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)
Is the mass number equal to the number of protons and electrons?
No, it isn't. The mass of an electron is significantly smaller than that of a proton.The mass of 1,800 electrons is about the same as the mass of one single proton.The antiparticle of the electron, the positron, has the same mass as the electron.the mass of the electron is not the same to the mass of the proton
What happen to atomic number and mass number of nucleus when it emits electron?
When a nucleus emits an electron, the atomic number increases by 1 since the nucleus gains a proton. However, the mass number remains the same because an electron is much lighter than a proton or neutron.
Why is the mass of an atoms electrons not included in the atoms mass number?
Mass number is defined as the number of protons and neutrons. It is related to Atomic Mass which incudes electron mass and nuclear binding energy , (binding energy reduces the overall mass relative to the combined masses of the protons and neutrons.) Electron mass is not included as mass number is element specific wheras the count of electrons varies depending on the chemical state. The mass of electrons is negligible compared to the mass of the protons and neutrons, binding energy is a larger effect.
The electron has very little mass compared to the blank or blank fill in the blank please Number Standard Neutrons Protons Mass?
The electron has very little mass compared to the neutron and proton. The neutrons and protons have a similar mass, about 2000 times greater than the mass of an electron.
