(a)
Daughter nucleus.
(a)
Answer to Problem 49P
The daughter nucleus is
Explanation of Solution
Given:
Radon gas,
Calculation:
The decay reaction is given by:
Hence, the daughter nucleus is
Conclusion:
Hence, the daughter nucleus is
(b)
The half-life of daughter nucleus.
(b)
Answer to Problem 49P
The half life of the daughter nucleus
Explanation of Solution
Given:
Radon gas,
Calculation:
The daughter nucleus further undergoes a reaction as follows:
So, the daughter nucleus is radioactive.
And the half life of the daughter nucleus
Conclusion:
Hence, the half life of the daughter nucleus
(c)
Whether the daughter nucleus is a noble gas or chemically reacting.
(c)
Answer to Problem 49P
The daughter nucleus is chemically reactive.
Explanation of Solution
Given:
Radon gas,
Calculation:
The decay reaction of the daughter nucleus is given by:
So, the daughter nucleus is chemically reactive.
Conclusion:
The daughter nucleus is chemically reactive.
(d)
The activity after 1 month later.
(d)
Answer to Problem 49P
The activity after 1 month is
Explanation of Solution
Given:
Radon gas,
Calculation:
The half-life of radon can be given as:
The number of radon atoms in 1.0 ng is given as:
Now, the activity equation is given by:
After one month, the activity is given by:
Conclusion:
Hence, the activity after 1 month is
Chapter 31 Solutions
Physics: Principles with Applications
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