F = MA
force = mass times accleration
Answer:
an atom is the basic unit of a chemical element.
a particle is a minute portion of matter.
Starting in 1908, while a professor at the University of Chicago, Millikan worked on an oil-drop experiment in which he measured the charge on a single electron. J. J. Thomson had already discovered the charge-to-mass ratio of the electron.
Answer:
The electrons are found on the outer shell of the atom.
Explanation: