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The mass of electron in kg is 9,10938356(11)×10−31
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∙ 7y ago
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What is the particle that determines the mass of an atom is called what?
Protons, neutrons and electrons
Why is it important for electrons to have no mass?
Actually, electrons do have mass.
What are the particles in orbit around an atom called?
Electrons orbit the Nucleus. the Nucleus contains protons and neutrons. The proton contains positive in charge (+) and Neutrons are neutral. (=) However, electrons are the ones with negative charge. (-)
What are negative charged subatomic particles called?
These particles are called electrons - symbol e-, electric charge -1, mass 9.10938291(40)×10−31 kg.
Which term describes the sum of the number of protons and neutrons in an atom?
when you could check in most of atoms that we have you will see that the sum of protons and electrons equals to or is called the atomic weight or atomic mass...that is if you add protons to electrons you have your atomic mass.
How is mass related to electrons?
because the electrons plus the nuetrons equal the 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).
Are electrons moving through space called light?
Electrons are very small, and have very small mass, but they are not visible light (photons).
What is the mass of 3 electrons?
depends on the electrons
Do electrons have mass?
Yes, electrons have a mass of 9.1094 X 10−31 kg.
When calculating an atoms approximate mass how is the mass of electrons figured?
electrons are the same as protons
Why mass of electrons is excluded from atomic mass?
The mass of electrons is not excluded from atomic mass. The mass number of an isotope of an element excludes electrons because it is the sum of protons and neutrons.From Wikipedia, "The atomic mass (ma) is the mass of a specific isotope, most often expressed in unified atomic mass units. The atomic mass is the total mass of protons, neutrons and electrons in a single atom."
