0
Compared to the mass of the proton, it is about 1/1000, as I remember.
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∙ 11y ago
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What scientist discovered that electrons travel around the nucleus in definite mass?
J.J Thompson
Which scientist was able to quantify the electrons charge and estimate its specific mass?
JJ Thomson
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).
Why is it important for electrons to have no mass?
Actually, electrons do have mass.
Who scientist discovery the electrons?
the scientist who discovered the electrons is Joseph John Thomson or simply john thomson.
An atom with 12 electrons 12 proteins and 14 neutrons has a mass number of what?
An atom that has 12 neutrons and 11 protons has a mass number of 12+11 or 23, because mass number is defined as the sum of the numbers of protons and neutrons. (The ending "12 neau" of the question has been disregarded, because it was assumed to be an error.)
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.
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.
How is mass related to electrons?
because the electrons plus the nuetrons equal the mass
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.
Who is the scientist who descoverd electrons?
J.J Thomson
What are scientist who study electrons called?
electronicters
