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What was the scientist name who discovered the electrons charge?
The scientist who discovered the charge of electrons was J.J. Thomson. He determined the charge-to-mass ratio of electrons through his experiments with cathode rays in the late 19th century.
What scientist discovered that electrons travel around the nucleus in definite mass?
J.J Thompson
What scientist is given credit for measuring the charge on the electrons. He found the charge was large compared to its mass?
This scientist is Robert Millikan (1868-1953).
What part of an atom is not used in calculating the mass number?
All parts of the atom weigh something but when doing calculations electrons are said to have a mass of 0. This is because they actually have a mass of 1/1836 amu which is insignificantly small and so it is disregarded.
An element's atomic mass does not include the mass of its?
An element's atomic mass does not include the mass of its electrons. Electrons have such a small mass compared to protons and neutrons that they are not typically included in calculations of atomic mass.
What unit of measure is used for measuring the mass of an atom?
Protons and neutrons are 17 septillionths of a gram. That is can be written as 0.0000000000000000000000017 or 1.7 times 10 to the -24th power. An electrons mass is too small for scientist to care about.
Does the atomic number of an element change with the gain or loss of an electron?
The electrical charge is changed by -1 when an atom loses an electron. The atomic mass number is determined by the number of protons and neutrons in the nucleus and is unaffected by the loss of an electron.
How is mass related to electrons?
because the electrons plus the nuetrons equal the mass
Who is the scientist who descoverd electrons?
J.J Thomson
What are scientist who study electrons called?
electronicters
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."
What is the mass of 3 electrons?
depends on the electrons
