1. Nuclear Chemistry
Essential Question: What are the different types of radioactive decay? How does each type change the nucleus?

2. TN Science Standards Chemistry I: Standard 3 – Interactions of Matter
CLE Analyze chemical and nuclear reactions
Write the nuclear equation involving alpha or beta particles based on the mass number of the parent isotope and complete symbols for alpha or beta emissions

3. Radioactive Decay
Spontaneous disintegration of a nucleus into a smaller nucleus by releasing particles and energy
Unstable nuclei are radioactive nuclides that decay to increase stability by changing their numbers of protons or neutrons

4. Radioactive Decay Alpha particle 2+ 4 Beta particle 1- Positron 1+
Type Emission
(absorbed instead
of emitted)*
Symbol
Charge
Mass
Alpha particle 2+ 4
Beta particle 1-
Positron 1+
Gamma ray
(EM energy)
none
Electron
Capture*

5. Alpha Emission

6. Beta Emission

7. Positron Emission

8. Gamma Emission

9. Electron Capture Decay