WBJEE · Chemistry · Chemical Kinetics
During the emission of a positron from a nucleus, the mass number of the daughter element remains the same but the atomic number
- A is decreased by 1 unit
- B is decreased by 2 units
- C is increased by 1 unit
- D remains unchanged
Answer & Solution
Correct Answer
(A) is decreased by 1 unit
Step-by-step Solution
Detailed explanation
When a positron is emitted, a proton is converted into neutron and neutrino. Thus, the number of protons and hence the atomic number decreases by one unit.
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