Entity: RADIOACTIVITY
Radioactivity is the property possessed by certain elements or isotopes to spontaneously emit energetic particles due to changes in their atomic nuclei.
RADIOACTIVITY
Etymology
The term 'radioactivity' is derived from the words 'radio-' meaning radiation and '-activity' indicating a state of being active.
Definition
Radioactivity is the property possessed by some elements or isotopes to spontaneously emit energetic particles such as electrons or alpha particles due to changes in their atomic nuclei.
Historical Context
Radioactivity was discovered by Henri Becquerel in 1896 and further studied by Marie Curie and Pierre Curie. Their work led to advancements in nuclear physics and the development of nuclear energy.
Cultural Significance
Radioactivity has had a significant impact on science, medicine, and energy production. It has also been associated with nuclear weapons and environmental concerns.
Related Concepts
- Nuclear energy
- Radiation
- Isotopes
See Also
- Nuclear physics
- Marie Curie
- Nuclear weapons
The phenomenon, exhibited by certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element.