neutron was discovered by Chadwick by bombarding a- particles on a thin sheet of
1.gold
2. silver
3. Beryllium
4.tungsten
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Answer:
ANSWER IS 1. GOLD !!!!!!!
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Right answer is 1. Gold as gold foil is the thinnest foil as possible
✓✓✓As thinnest foil of gold contain only 100 atoms so as to take correct and actual observation Chadwick choose this.
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