Radioactivity

Similar term(s): radioactive.

The spontaneous emission of ionizing radiation from the nucleus of an unstable atom. Radioisotopes lose particles and energy through this process.

Source: GreenFacts, based on Energy Information Administration Glossary  

Radioactive refers to anything that is caused by, or exhibits radioctivity.

Radioactivity is measured in becquerel (Bq).

Source: GreenFacts

Radiation - Radioactive decay - Radioactive material - Radioactive waste

GreenFacts Summary on the Chernobyl Nuclear Accident:

• 1. What was the extent of the Chernobyl accident?

Español: Radiactividad
Français: Radioactivité

Chernobyl

Climate Change

Fukushima accident

Fukushima Consequences

Cancer rates and mortality, types and causes