JEE Mains · Physics · STD 12 - 13. Nuclei
A free neutron decays into a proton but a free proton does not decay into neutron. This is because
- A neutron is an uncharged particle
- B proton is a charged particle
- C neutron is a composite particle made of a proton and an electron
- D neutron has larger rest mass than proton
Answer & Solution
Correct Answer
(D) neutron has larger rest mass than proton
Step-by-step Solution
Detailed explanation
As neutron has more rest mass than proton it will require energy to decay proton into neutron.
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