2007-02-25 03:50:40 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
In nuclear fission, a large atom is breaking into smaller pieces. For example, plutonium decays by releasing an alpha particle and Uranium (which then further decays, and so on). This releases a great deal of energy
Nuclear fusion is the building up of 2 smaller atoms, e.g. isotopes of hydrogen, and creating a larger atom for example Helium. . This releases an even greater deal of energy This is what happens in the sun.
2007-02-25 03:57:30 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
Fission breaks apart the bonds between the subatomic particles releasing their energy by smashing the free particles into other particles, creating a chain reaction.
In nulcear fusion particles join with other particles creating larger unstable isotopes that release energy as they loose stability and continue to combine with other particles, creating a chain reaction.
2007-02-25 04:02:48 · answer #2 · answered by opinionator 5 · 0⤊ 0⤋
Fission is the breaking of atoms and fusion is the "Fusing" of atoms together.
2007-02-25 04:01:14 · answer #3 · answered by Guy named Joe 1 · 0⤊ 0⤋
Fusion- when two atoms come together to form one
Fission- when an atom splits into 2 seperate parts
2007-02-25 03:58:06 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Sweet jesus, can you do any of your homework by yourself?
Go to wikipedia.org and type in fusion, read that article, then type fission and read that article.
2007-02-25 03:57:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋