Question

Who discovered electrons are negative?

Answer 1

Answer:

J.J. Thomson

Explanation:

J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."

Answer 2

Answer:

J.J Thomson's discovered that electrons are negative.