Question
Chemistry Question on Structure of atom
Neutron was discovered by
A
Chadwick
B
Rutherford
C
Yukawa
D
Dalton.
Answer
Chadwick
Explanation
Solution
Neutron was discovered by Chadwick.
- Rutherford, in 1920 proposed the existence of a neutral particle made from a close combination of protonand electron to overcome the failure of the proton-electron hypothesis.
- This particle was named neutron.
- In 1932, Lord Chadwick proved the existence of neutrons by bombarding lighter elements (boron and beryllium) with alpha particles which resulted in the emission of highly penetrating neutral radiation.