Question

Who lived in the early 1800's and proposed the first comprehensive, accepted atomic

theory?
Ernest Rutherford
Neil Bohr
JJ Thomson
Democritus

Answer 1

JJ Thomson

Step-by-step explanation:

JJ Thomson is a great scientist who carried out experiment leading to the discovering of the electron in 1897. He also developed the Plum Pudding Model which happens to be an early model of atom and the atomic theory.

It states that, an atom can be described as a positively charged sphere ball in which the a negatively charged electrons is scattered inside it.