**Q2: **

How many neutrons does an alpha particle have?

**Q3: **

How many protons does an alpha particle have?

**Q4: **

When a nucleus emits an alpha particle, by how much does the atomic number of the remaining nucleus decrease?

**Q5: **

When a nucleus emits an alpha particle, by how much does the mass number of the remaining nucleus decrease?

**Q6: **

What is the relative charge of an alpha particle?

**Q7: **

The following nuclear equation shows how an isotope of curium decays to plutonium via alpha decay: What are the values of and in the equation?

- A ,
- B ,
- C ,
- D
- E ,

**Q8: **

The following nuclear equation shows how an isotope of uranium decays to thorium: What is the value of in the equation?