Radioactivity: Expect the unexpected

A radioactive nucleus:

• Spontaneously emits a particle then changes to another element

• Spontaneously emits a particle but remains the same element

• never emits a particle

• Never changes element

Alpha radiation:

• Is the fastest moving nuclear radiation

• Passes through aluminum sheets

• Is an electron emitted from the nucleus

• Causes more ionization than beta

Gamma radiation:

• Causes you to turn green when angry

• Travels at the speed of light

• Is easily stopped by paper

• Is a particle

Chemistry has taught us to expect stable nuclei

• True

• False

The most serious effect of radiation on human is:

• It causes us to melt

• The damage it can cause to our DNA

• There is no serious effects of radiation on humans

• The damage it can cause to our skin