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Tarzan · Answer 1 · 2021-03-07T13:13:28+0000

Answer: D) positive charges are embedded in a negative sphere.

Explanation: In 1897, Thomson discovered negatively charged particles with a very small mass. He proposed that these small negative particles, now called electrons, were embedded in a positively charged sphere. Therefore the statement that is not a premise of his model is positive charges were embedded in a negative sphere.

Andrei Kamenskikh · Answer 2 · 2021-03-10T00:14:51+0000

Answer: j.j. Thompson didn't know at the time of the nucleus so the belief that was missing from the plum pudding model would be the nucleus.

Step-by-step explanation:

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