← Chapter 18 Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Burner Reactor a type of reactor that consumes more fissionable material than it produces. Breeder Reactor a faster-producing reactor that utilizes 40-70% of it's nuclear fuel. Fission harvesting the energy created by the splitting of an atom into smaller fragments. Fusion the joining of two or more light elements to create a heavy one with the release of energy. Half-Life the time frame for half of a substance to disappear. Radioactive Decay the process of a decaying radioisotope releasing some form of radiation.