copyright 2011 creativechemistrylessons.comcreativechemistrylessons.com radioactive decay play...

Copyright 2011 CreativeChemistryLessons.com

Radioactive DecayRadioactive Decay

PLAY DON’T CHA VIDEO

What are the 3 types of decay?What are the 3 types of decay?1.1.AlphaAlpha

– Release of Helium nucleusRelease of Helium nucleus2.2.BetaBeta

– Release of an electronRelease of an electron3.3.GammaGamma

– Release of an energy burstRelease of an energy burst

What are the 3 types of decay?What are the 3 types of decay?1.1.AlphaAlpha

– Release of Helium nucleusRelease of Helium nucleus2.2.BetaBeta

– Release of an electronRelease of an electron3.3.GammaGamma

– Release of an energy burstRelease of an energy burst


Alpha Decay:Alpha Decay:

• When an unstable nucleus releases a Helium nucleus, which is called an ALPHA PARTICLE = HELIUM NUCLEUS

• When an unstable nucleus releases a Helium nucleus, which is called an ALPHA PARTICLE = HELIUM NUCLEUS

42 He42 He

PLAY ALPHA CLIPαα


23892

42 U ?He +

ALPHA DECAY

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238 2342 90

429 H e h U + T

ALPHA DECAY



42 He42 He

23892 U23892 U23490Th23490Th

ALPHA DECAY

23892 U23490Th

23892 U23490Th238

92 U23490Th

23892 U23490Th 238

92 U23490Th

23892 U23490Th

ALPHA DECAY

23892 U23490Th

WATCH!

RUN ALPHADECAY SIMULATOR



• Example Equation.• Example Equation.

211 484 2Po He ? + 211 484 2Po He ? +

21184 Po21184 Po 215

86 Po21586 Po 207

82 Pb20782 Pb




236 492 2 ?U He + 236 492 2 ?U He +

24094 U24094 U 232

90Th23290Th 240

94 Pu24094 Pu



• Complete the equation.• Complete the equation.

226 488 2 + Ra He ?226 488 2 + Ra He ?

22892 U22892 U 230

90Th23090Th 222

86 Rn22286 Rn




4 2372 93 + ? He Np 4 2372 93 + ? He Np

23391Pa23391Pa 241

95 Am24195 Am 233

91U23391U




4 2402 92 + ? He U 4 2402 92 + ? He U

24494 Pu24494 Pu 244

96Cm24496Cm 238

94 Pu23894 Pu


Beta Decay:Beta Decay:

• When an unstable nucleus turns a neutron into a proton and releases an electron.BETA PARTICLE = ELECTRON

• When an unstable nucleus turns a neutron into a proton and releases an electron.BETA PARTICLE = ELECTRON

01e01e

pn

ββ

PLAY BETA CLIP

0-1

146C ? e +

BETA DECAYppnn

014 146 7-1C + e N

BETA DECAYppnn

Protons and neutrons are made ofsmaller particles called QUARKS

Beta Decay:

01e

BETA DECAY

146C147 N

146C147 N

146C147 N

146C147 N

146C147 N

146C147 N

BETA DECAY

e146C147 N

WATCH!

RUN BETA DECAY SIMULATOR




3 01 -1H e + ?3 01 -1H e + ?

02 He02 He 3

2 He32 He4

2 He42 He

p n




232 090 -1Th e + ?232 090 -1Th e + ?

23292 U23292 U 232

91Pa23291Pa231

90Th23190Th

p n




p n

140 058 -1e ?+ Ce 140 058 -1e ?+ Ce

13957 Ce13957 Ce 140

59 La14059 La140

59 Pr14059 Pr




p n

0 150-1 62e + ? Sm 0 150-1 62e + ? Sm

15063Eu15063Eu150

61Pm15061Pm150

61Sm15061Sm




p n

0-1

16468e + ? Er 0

-1164

68e + ? Er

16469Tm16469Tm 164

67 Er16467 Er164

67 Ho16467 Ho

Gamma Rays:Gamma Rays:


Gamma Radiation:Gamma Radiation:

• When an unstable nucleus releases a burst of high energy wavelengths.GAMMA = ENERGY

• When an unstable nucleus releases a burst of high energy wavelengths.GAMMA = ENERGY

PLAY THE HULK CLIP PLAY GAMMA RAY VIDEO

γ

PLAY GAMMA CLIP


241 4 2379 05 2 3

09Am He + Np + γ

GAMMA RAYS

γ



Gamma Rays:Gamma Rays:


226 088 0Ra γ + ?226 088 0Ra γ + ?

22286 Rn22286 Rn 227

89 Ac22789 Ac226

88 Ra22688 Ra

LESSON SUMMARYLESSON SUMMARY

Identify the Main Topic. Use my analogies.Identify the Main Topic. Use my analogies.The topic we learned in chemistry today The topic we learned in chemistry today was __________, which is caused by…was __________, which is caused by…

Give an example of the topic.Give an example of the topic.For instance, _____ is a good example of For instance, _____ is a good example of the topicthe topic because… because…

Explain additional details of your example.Explain additional details of your example.Furthermore, Furthermore, your exampleyour example shows shows the topicthe topic because it demonstrates…because it demonstrates…


Penetration PowerPenetration PowerPenetration PowerPenetration Power

PLAY DON’T CHA VIDEO

Power of Radioactive DecayPower of Radioactive Decay1.1.AlphaAlpha

– Gets blocked by Gets blocked by paperpaper2.2.BetaBeta

– Gets blocked by Gets blocked by wood or wood or aluminumaluminum

3.3.GammaGamma– Gets blocked by Gets blocked by lead or thick lead or thick

concreteconcrete

Power of Radioactive DecayPower of Radioactive Decay1.1.AlphaAlpha

– Gets blocked by Gets blocked by paperpaper2.2.BetaBeta

– Gets blocked by Gets blocked by wood or wood or aluminumaluminum

3.3.GammaGamma– Gets blocked by Gets blocked by lead or thick lead or thick

concreteconcrete

PLAY RADIATION PENETRATION CLIP

PAPER

PAPER

WOODOR

ALUMINUM

WOODOR

ALUMINUM

LEADOR

CONCRETE

LEADOR

CONCRETE

BODY ARMOR

1: NONE2: PAPER3: WOOD4: ALUMINUM5: LEAD6: CONCRETE

SWORD

1: ALPHA2: ALPHA3: BETA4: BETA5: GAMMA6: GAMMA

copyright 2011 creativechemistrylessons.comcreativechemistrylessons.com radioactive decay play...

Documents

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beta decay slide

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beta decay simulator

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p n slide

types of decay

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