PS Chap 8 Review

When the nucleus is unstable, what occurs?

• Chemical reaction
• Nuclear Radiation

• Nuclear fusion
• Nuclear fission

What are the three types of radioactivity?

• solid, liquid, gas
• alpha, beta, and gamma decay

• red, blue, green
• north, south, east

What type of decay has an electron leaving the nucleus?

• Beta decay
• Gamma decay
• Alpha decay
• Neutron decay

What type of radiation occurs what only energy leaves the nucleus?

• alpha radiation
• beta radiation
• infrared radiation
• gamma radiation

Isotopes are atoms with the same number of protons but different numbers of

• electrons
• photons
• protons
• neutrons

Radioactive waste is stored to avoid

• cleanliness
• contamination to people and the environment

• radiation exposure
• environmental protection

Radioactive waste do what with time?

• Decay
• Evaporate
• Grow
• Multiply

High-level waste needs to be held for how many years prior to disposal?

• 30

• One year
• 12

• 50

Types of radioactive waste disposal are:

• Deep geological disposal, Surface storage, and Transmutation
• Dumping in a landfill
• Launching into space
• Burying in the ocean

Other ideas of radioactive waste disposal being considered are:

• Burying waste in urban areas
• Dumping waste in rivers
• Leaving waste in open landfills
• Long-term above ground disposal, rock melting, Space disposal, disposal in subduction zones