FISSION and FUSION.

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Presentation transcript:

FISSION and FUSION

Nuclear Fission The splitting of a more massive nucleus of an atom into 2 smaller nuclei, subatomic particles and energy (radiation)

Fission Massive nucleus 2 smaller nuclei Subatomic particles Energy

Fission Reaction: n + U  Kr + Ba + 3 n + energy 235 92 141 1 1 n + U  Kr + Ba + 3 n + energy 92 36 56 93 235 ___ 141 1 1 Kr n + U  ____ + Cs + 3 n + energy 36 92 ___ 56

Fission Chain Reaction

Nuclear Fission at Work – CANDU Reactors (Canadian Nuclear Reactors)

Fission Chain Reaction at work – the Atom Bomb (Originally made with Uranium or Plutonium)

Nuclear Fusion The joining (fusing) of 2 smaller, lower mass nuclei together, to make 1 more massive nucleus, and give off energy and subatomic particles too.

Fusion Small Atom Small Atom Massive Atom Massive Atom (unstable) Massive Atom Particles given off

Fusion Reaction of Hydrogen

Fusion Reaction: H+ H  He + + n + energy 2 3 4 1 H+ H  He + + n + energy 1 1 2 234 92 141 ___ 1 3 n + Kr + Ba  ____ + energy U 92 36 56 ___ Remember… what’s on the left of the arrow must EQUAL what’s on the right

Fusion chain reaction at work – the Hydrogen Bomb

Fusion at work - The Sun

Fission Vs. Fusion http://www.youtube.com/watch?v=- Qliifidcuw&feature=related Harnessing the Sun’s Power of Nuclear Fusion http://www.youtube.com/watch?v=sSi-zSeS0_Y Nuclear Bomb Test (actual footage from 1946) http://www.youtube.com/watch?v=Z29H_AX-jTs Atomic Bomb Test http://www.youtube.com/watch?v=sKEtIcyx4KM http://www.youtube.com/watch?v=NNcQX033V_M