Recall that in a nuclear reaction, the number of protons and neutrons is affected and the identity of the element changes.
The different types of radioactive decay are:
• Alpha decay: forms an alpha particle (42α, atomic mass = 4, atomic number = 2)
• Beta decay: forms a beta particle (0–1β, atomic mass = 0, atomic number = –1). The beta particle appears in the product side.
• Gamma emission: forms a gamma particle (00γ, atomic mass = 0, atomic number = 0)
• Positron emission: forms a positron particle (01e, atomic mass = 0, atomic number = 1)
• Electron capture: the initial nuclide captures an electron (0–1e, atomic mass = 0, atomic number = –1). The electron appears in the reactant side.
Which one of the following has the greatest mass?
A. Alpha particle
B. Beta particle
D. Gamma ray
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Radioactive Decay concept. You can view video lessons to learn Radioactive Decay . Or if you need more Radioactive Decay practice, you can also practice Radioactive Decay practice problems.