Nuclear Fission and Fusion. Nuclear Fission Nuclear Fission: The splitting of a massive nucleus into two smaller nuclei.

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Presentation transcript:

Nuclear Fission and Fusion

Nuclear Fission Nuclear Fission: The splitting of a massive nucleus into two smaller nuclei

Nuclear Fission Nuclear Fission: The splitting of a massive nucleus into two smaller nuclei Nuclear Fission and Energy: The splitting of atoms produces a large amount of energy. This energy is produced in nuclear power plants

Nuclear Fission Nuclear Fission: The splitting of a massive nucleus into two smaller nuclei Nuclear Fission and Energy: The splitting of atoms produces a large amount of energy. This energy is produced in nuclear power plants Problems with nuclear power: The waste produced has to be safely stored for thousands of years.

Nuclear Reactions Nuclear Reactions: When an atom’s nucleus changes by gaining or releasing particles or energy. Particles released: Protons, neutrons and or electrons

Particles released in nuclear reactions

Rules for writing nuclear equations The sum of the mass numbers must be the same on both sides The sum of the charges (atomic number) must be the same.

Fission reaction

Chain reactions and weapons Chain reaction: when one fission reaction stimulates the next reaction (eg a neutron from one will join to another nuclei causing it to split)

Chain Reaction h

Nuclear Fusion Nuclear Fusion: The opposite of nuclear fission - When two smaller nuclei fuse to form one larger one