James Chadwick
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James Chadwick
Chemistry Mix n Match![](https://phylogame.org/wp-content/uploads/2016/05/chadwick-2.jpg)
Demonstrated that the beam Irene Joliot Curie discovered wasn’t gamma rays but was a particle with the same mass as a proton (neutrons).
Graphic by Eric Hamber Secondary
Demonstrated that the beam Irene Joliot Curie discovered wasn’t gamma rays but was a particle with the same mass as a proton (neutrons).