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andrew-joseph
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I prepared this analogy for a low ability grade 9 class who required a lot of visual aids and animated involvement from myself. The analogy of the 3 types of radioactive decay centres around a woman (my real life aunt) carrying her shopping from the mall to the car.... 3 different events to aid in representing alpha, beta and gamma radiation with a summary of the three at the end which I printed off as a handout. Hope its useful :)
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1
H1
1
H2
ISOTOPES
CHANGED
α - ALPHA DECAYAlpha Decay: Radioactive decay in which the nucleus loses 2 protons and 2 neutrons
(what element has 2 protons and 2 neutrons on the periodic table?) 6
C14
4
Be12
-2 P & -2N
EXAMPLE
CHANGED
β - BETA DECAY
Beta Decay: Radioactive decay in which a neutron is broken down to a proton & an electron; the electron is lost.
6
C14
7
N14
- 1 N + 1 P
EXCITED
EXCITED
γ - GAMMA DECAY
Gamma Decay: Radioactive decay in which the nucleus changes from and excited state to a stable state, be releasing a gamma wave
This happens at the same time as either alpha or beta decay
α - ALPHA DECAY
β - BETA DECAY
γ - GAMMA DECAY
Electron Lost+ 1 ProtonNeutron breaks down
He (2 protons & 2 neutrons)
Nucleus – 2p & - 2n
Gamma rayExcited atom