PH-2118
Radioactive decay
Physics · Secondary 4 · Easy · Radioactive decay
A nucleus of a radioactive isotope emits an alpha-particle. Which row correctly shows the changes in proton number and nucleon number of the nucleus?
- proton number −2, nucleon number −4
- proton number −4, nucleon number −2
- proton number −2, nucleon number −2
- proton number unchanged, nucleon number −4
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.