Modern Physics Ques 112
- The electron emitted in beta radiation originates from
(a) inner orbits of atom
(b) free electrons existing in nuclei
(c) decay of a neutron in a nucleus
(d) photon escaping from the nucleus
Show Answer
Answer:
Correct Answer: 112.(c)
Solution:
Formula:
- During $\beta$-decay, a neutron is transformed into a proton and an electron. This is why atomic number $(Z=$ number of protons) increases by one and mass number ( $A=$ number of protons + neutrons) remains unchanged during beta decay.
BETA
