nuclear decay come together, fall apart. before we begin….. what is half-life? what is the...
TRANSCRIPT
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Nuclear Decay
Come together, fall apart
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Before we Begin…..
• What is Half-Life?
• What is the difference between fission and fusion?
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Tell me the mass
• Carbon 14• Carbon 12• Nitrogen 14
Uranium 238Uranium 232
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Real Quick
• What does the Atomic Number tell us?
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Real Quick
• What does the Atomic Number tell us?
• THE NUMBER OF PROTONS IN THE NUCLEUS
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Put it together
• Carbon 14 has a mass of ________
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Put it together
• Carbon 14 has a mass of ___14____
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Put it together• Carbon 14 has a mass of ___14____
C14
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Put it together• Carbon 14 has a mass of ___14____
C14
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Put it together• Carbon 14 has a mass of ___14____
C14
6
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Come to the board
• Uranium 238 Carbon 12 Calcium 455
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Alpha and Beta Decay
• Alpha – The removal of a Helium Particle.
Beta – The removal of an electron particle of from a Neutron.
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Alpha decay
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Beta Decay
Did the mass change???
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Lets try an equation
• ALPHA DECAY – what do we know is going to happen?
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Uranium 235 (alpha decay)
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Beta Decay
• Beta decay is the removal of __________.
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Carbon 14 (beta decay)
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Mendelevium 257 (alpha decay)
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Calcium 45 (beta decay)
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The Smallest Week of the Year
• Monday – Finish up Radioactive Decay. Positron Decay and Gamma Radiation.
• Tuesday – Quiz (Take it easy, you guys know this)
**NO MUCA MEETING THIS WEEK**
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Recap
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Recap – Beta Decay
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The last three decays
• Positron Decay – A proton losing a POSITIVE ELCTRON and turning into a Neutron
• **THE PROTON COUNT GOES DOWN!!!
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Positron Decay
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Positron Decay
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Gamma Ray
• Gamma Radiation – Beta Decay with a y-ray
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Röntgen radiation
• Röntgen radiation – The X-RayTHERE IS NO EQUATION FOR X-RAYALL YOU NEED TO KNOW IS THAT Röntgen
discovered it
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Fluorine 19 (positron decay)
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Mendelevium 257 (Gamma Radiation)
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Calcium 45 (positron decay)
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Uranium 238 (gamma Radiation)
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Nitrogen 13 (Positron Decay)
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Cobalt 60 (gamma Radiation)