Concept explainers
Part (a):
The nucleus is unstable and will decay into 2 particles.
Answer to Problem 21P
Solution:
Since binding energy of is lesser than that of two He nucleus, will decay into two alpha particles.
Explanation of Solution
Formula used:
Binding energy is .
The binding energy of two Helium nuclei is . Since binding energy of is lesser than that of two He nucleus, will decay into two alpha particles.
Calculation:
Mass of is . Mass of neutron is . Mass of proton is .
Mass defect is .
Binding energy .
Part (b):
The nucleus is stable against decay into 3 particles.
Answer to Problem 21P
Solution:
Yes. Binding energy of is positive.
Explanation of Solution
Formula used:
Binding energy is .
Binding energy of is positive. Hence, is stable against decay into 3 particles.
Calculation:
Mass of is . Mass of neutron is . Mass of proton is .
Mass defect is .
Binding energy .
Chapter 30 Solutions
Physics: Principles with Applications
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