⚛ Chadwick's Neutron Discovery — 1932
α particles bombard beryllium → neutron released → proton ejected from paraffin wax
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α particle (He²♠)
Neutron (n°)
Proton (p♠)
⁹Be + α → ¹²C + n°
α Fired
0
Neutrons
0
Protons Ejected
0