Part 4 – Nuclear Chemistry

1. Complete the following nuclear equations and identify X and Y.

 

 

 

2. Use the radioactivity decay series in the data booklet to answer the following.

 

 

 

(a) Name the elements represented by X, Y and Z.
(b) Name the particle emitted in the first stage.
(c) Which element in the series shown has the shortest half life?

3. Write a nuclear equation for

 

 

 

4. Element P is a radioactive isotope which undergoes transitions as follows:

 

 

 

5. In each of the following, state whether or not both species have the same half-life.

 

 

 

 

6. The remains of an ancient fire found in a cave had a ¹⁴C count rate of 15.3 counts/min per gram of C. The ¹⁴C count rate in a newly cut piece of wood is 122.4 counts/min. The half life of ¹⁴C=5730years.

Calculate the age of the fire.