Respuesta :
C. neutral, with the number of protons equaling the number of electrons.
is the right answer
because number of neutrons vary from atom to atom
is the right answer
because number of neutrons vary from atom to atom
1. D. Charge-to-mass ratio of electrons was the same, regardless of the gas used.
2. Millikan
3. A. 1/840 the mass of a hydrogen atom
4. C. Neutral, with the number of protons equaling the number of electrons