Exam-style question
Try this first
When an alpha particle is emitted, what is the change in the composition of the nucleus?.
- A.Atomic number increases by 1, mass number stays the same.
- B.Atomic number decreases by 2, mass number decreases by 4.
- C.Atomic number increases by 1, mass number increases by 1.
- D.Atomic number stays the same, mass number decreases by 1.
Answer and explanation
Attempt the question first, then reveal the model answer and explanation.
Common mistake
No common mistake is linked to this question yet.