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Copyright 2011 CreativeChemistryLessons.com
Nuclear Chemistry
A nucleus becomes unstable when it has too many or too few neutrons.
A nucleus becomes unstable when it has too many or too few neutrons.
Copyright 2011 CreativeChemistryLessons.com
What’s the Word?What’s the Word?
The process when an The process when an unstable unstable nucleusnucleus releasesreleases subatomic subatomic particlesparticles and energy, in order to and energy, in order to stabilize.stabilize.
R A D I O A C T I V I T YR A D I O A C T I V I T YPLAY DON’T CHA VIDEO
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What Do You Think?
Every country should be allowed to possess nuclear technology, for any reason.
Every country should be allowed to possess nuclear technology, for any reason.
Play Attack onPearl Harbor
Play NuclearDrop on Japan
Play RadiationTherapy
Copyright 2011 CreativeChemistryLessons.com
History of Radioactivity
Pay attention to these details…
The people who discovered it.
The first elements discovered.
Types of radioactive decay.
HOW IT ALL
BEGAN
Play HistoryOf Radiation
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Were You Paying Attention?
What was the first radioactive element to be discovered?A. UraniumB. RadiumC. Pollonium
What was the first radioactive element to be discovered?A. UraniumB. RadiumC. Pollonium
Copyright 2011 CreativeChemistryLessons.com
Radioactive ElementsH He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba ↓ Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra
La Ce Pr Nb Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Copyright 2011 CreativeChemistryLessons.com
Were You Paying Attention?
Which scientist first discovered that Uranium is radioactive?A. Ernest RutherfordB. Marie CurieC. Henri Becquerel
Which scientist first discovered that Uranium is radioactive?A. Ernest RutherfordB. Marie CurieC. Henri Becquerel
Copyright 2011 CreativeChemistryLessons.com
Were You Paying Attention?
Which scientist first discovered radioactive Radium and Pollonium?A. Ernest RutherfordB. Marie CurieC. Henri Becquerel
Which scientist first discovered radioactive Radium and Pollonium?A. Ernest RutherfordB. Marie CurieC. Henri Becquerel
Copyright 2011 CreativeChemistryLessons.com
Radioactive ElementsH He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba ↓ Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra
La Ce Pr Nb Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Copyright 2011 CreativeChemistryLessons.com
Were You Paying Attention?
Ernest Rutherford discovered that radioactive particles are UNABLE to travel through matter.
Ernest Rutherford discovered that radioactive particles are UNABLE to travel through matter.
Copyright 2011 CreativeChemistryLessons.com
Rutherford’s Gold Foil ExperimentRutherford’s Gold Foil Experiment
Rutherford’s ModelRutherford’s Model
THE ATOM IS MOSTLY EMPTY SPACETHE ATOM IS MOSTLY EMPTY SPACEWITH A SMALL, DENSE NUCLEUS!WITH A SMALL, DENSE NUCLEUS!
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Were You Paying Attention?
Which of the following isNOT a man made application of nuclear chemistry?A. Medical TreatmentB. Weapons of Mass DestructionC. Powering the SunD. Creating Energy
Which of the following isNOT a man made application of nuclear chemistry?A. Medical TreatmentB. Weapons of Mass DestructionC. Powering the SunD. Creating Energy
Copyright 2011 CreativeChemistryLessons.com
TRADITIONAL RADIATION THERAPY
TRADITIONAL RADIATION THERAPY
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Were You Paying Attention?
Challenge QuestionWhich type of radiation DOES NOT come from the decay of an unstable nucleus?A. Alpha ParticlesB. Beta ParticlesC. X-RaysD. Gamma Rays
Challenge QuestionWhich type of radiation DOES NOT come from the decay of an unstable nucleus?A. Alpha ParticlesB. Beta ParticlesC. X-RaysD. Gamma Rays
Copyright 2011 CreativeChemistryLessons.com
Half Life
Half life is the period of time it takes for the half of a substance to undergo radioactive decay.
Half life is the period of time it takes for the half of a substance to undergo radioactive decay.
146C146C
5,700 Years4.5 Billion Years
23892U23892U
Run RadioactiveDating Simulator
Copyright 2011 CreativeChemistryLessons.com
Summarize Your Thoughts
Explain your current opinion about nuclear technology and whether or not it changed during the lesson.
I believe that nuclear technology (should or should not) be accessible to all countries for these reasons…
My opinion (has or has not) changed because…
Explain your current opinion about nuclear technology and whether or not it changed during the lesson.
I believe that nuclear technology (should or should not) be accessible to all countries for these reasons…
My opinion (has or has not) changed because…
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 a lot like…was __________, which is a lot like…
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, exampleexample shows shows the topicthe topic because it portrays…because it portrays…
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