Which scientist was able to quantify the electron's charge and estimate its specific mass? a. j. j. thomson b. robert millikan c. eugen goldstein d. ernest rutherford

Millikan C

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B. Robert Millikan

Explanation:

J.J. Thompson gave the plum pudding model of the atom.  

Millikan determined the charge and mass of an electron. Millikan’s oil drop experiment was conducted to measure the elementary charge ( or a unit charge).  

Eugen Goldstein discovered the anode rays or protons.  

Rutherford conducted the gold foil experiment and proved that the center of the nucleus has a positive charge and most of the atom’s mass lies in a small volume.  

it's all four options.

fe 55.85 g/mol and h2o 18.02 g/mol.