Radioactive Decay

Match the radioactive decay particle with its description.

• beta particle

• wave of energy

• gamma ray

• an electron

• alpha particle

• A helium nucleus (2 p⁺, 2 n⁰)

Match the symbol to each type of radiation

• beta particle

• ⁰₀γ

• alpha particle

• 
• gamma ray

• 

Each type of radioactive decay particle can be stopped by different materials. Match the particle with the type of material needed to stop its movement.

• alpha particle

• lead/concrete

• gamma ray

• aluminum

• beta particle

• paper

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time

what's the half life of this substance?

• 1 day
• 2 days
• 3 days
• 4 days

What type of radioactive decay is shown here?

• Alpha decay
• Beta decay
• Gamma decay

Solve this equation for beta decay.
₂₇⁶⁰Co = ___ + _-1⁰e

• ₂₅⁵⁶Mn
• ₂₈⁶⁰Ni
• ₂₃⁵⁸V
• ₂₇⁵⁹Co

Solve this equation for alpha decay.
₈₅²⁰⁹At = ___ + ₂⁴He

• ₈₃²⁰⁵Bi
• ₈₆²⁰⁹Rn
• ₈₁²⁰⁷Tl
• ₈₅²⁰⁸At

Solve this equation for alpha decay.
₈₈²²⁶Ra = ___ + ₂⁴He

• ₈₆²²²Rn
• ₈₉²²⁶Ac
• ₈₄²²⁴Po
• ₈₈²²⁵Ra

Ionizing radiation has the ability to cause biological damage to our tissues. True or False

• True

• False