Vocabulary

Fission:
"division of a cell (dictionary, 2009)

Fusion:
The state of being melted or dissolved by heat; or being put together. (dictionary, 2009)

Chemical Reaction:
A process in which atoms of the same or different elements rearrange themselves to form something new. While they do so, they either absorb heat or give it off. (dictionary, 2009)

Nuclear Reaction:
A reaction that changes the number of protons or neutrons in the nucleus's of an atom.(dictionary, 2009)

Isotopes:
One of two or more atoms having the same atomic number but different mass numbers.(dictionary, 2009)

Energy:
Strength of expression; force of delivery; power to impress the mind and spark the feelings; life; spirit. (dictionary, 2009)


Half Life: amount of time it takes for half of the nuclei of a radio active isotope to dissolve or disappear. (dictionary, 2009)


Fissile: capable of being split or divided. (dictionary, 2009)


Radioactive Isotopes: different types of the same element that have different masses whose nuclei are unstable and give off excess energy by hyper actively sending out radiation in the form of alpha, beta, and gamma rays. (Encyclopedia, 2009)