Compare the practical uses and limitations of nuclear fission and fusion. Include in your answer a detailed description of the two processes, comparing and contrasting them in terms of the types of atoms involved, the conditions needed to get the reaction started, and the types of products produced?
Please help.
My answer is that fission is the separation to the atom and fusion is when its joining to the atom but that's all I really know. chemistry is not my subject at all.

Question

Compare the practical uses and limitations of nuclear fission and fusion. Include in your answer a detailed description of the two processes, comparing and contrasting them in terms of the types of atoms involved, the conditions needed to get the reaction started, and the types of products produced?
Please help. 
My answer is that fission is the separation to the atom  and fusion is when its joining to the atom but that's all I really know. chemistry is not my subject at all.