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17 multiple choice 3 points in 1932, the english physicist james chadwi…

Question

17 multiple choice 3 points in 1932, the english physicist james chadwick carried out an experiment to show that exist. nucleus protons electrons neutrons 18 multiple choice 3 points protons and neutrons have almost the same mass. about electrons equal the mass of one proton. 1/2000 2000 200 2

Explanation:

Brief Explanations
  1. En 1932, James Chadwick demostró la existencia de los neutrones a través de experimentos.
  2. La masa de un electrón es aproximadamente 1/2000 de la masa de un protón. Los protones y neutrones tienen masas casi iguales.

Answer:

  1. neutrones
  2. 1/2000