The isotope which decay by β-1 emission to produce 48Cd111 is
Correct answer: A. 47Ag111
- A. 47Ag111
- B. 47Ag110
- C. 47Ag112
- D. 49In111
Explanation
In β⁻ emission (beta minus decay): An electron (β⁻ particle) is emitted.→ Atomic number increases by 1, mass number stays same.So the parent nucleus must have:Same mass number = 111Atomic number = 48 − 1 = 47Element number 47 is Silver (Ag).
This question appeared on the ETEA MDCAT 2015 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Radioactive Decay
Radioactive decay is the spontaneous transformation of unstable nuclei, described by decay constant, activity, half life and the exponential decay law. Work includes alpha, beta and gamma emissions, decay equations and remaining nuclei, with half life distinguished from the time required for complete decay.
Practise Nuclear Physics
1,254 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.