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Please open up your unit packet to page 104. Do page 104 & pg 102 Qs 1-5

Please open up your unit packet to page 104. Do page 104 & pg 102 Qs 1-5. Let’s go over PAGE 102, 1-10. #1. What changes take place in the nucleus when an alpha particle is emitted?. Mass # goes down 4, protons go down 2, Neutrons go down 2.

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Please open up your unit packet to page 104. Do page 104 & pg 102 Qs 1-5

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  1. Please open up your unit packet to page 104. Do page 104 & pg 102 Qs 1-5

  2. Let’s go over PAGE 102, 1-10

  3. #1. What changes take place in the nucleus when an alpha particle is emitted? Mass # goes down 4, protons go down 2, Neutrons go down 2

  4. #2. What is the identity (symbol) of an alpha particle? What element is it? Helium!

  5. #3. What changes take place in the nucleus when a beta particle is emitted? 1 less neutron, 1 more proton

  6. #4. Which particle is associated with beta decay? An electron!

  7. #5. When an alpha particle is lost from an atom, where on the periodic table would you look to find the product? Atomic # = # of protons

  8. #7. Does the identity of the atom change during radioactive decay? Why or why not? Yes, because the number of protons changes.

  9. #8. If an atom of element # 85, astatine, undergoes alpha decay, what atom will be produced? Bismuth (Bi) 206 α 4 Bi 210 At + 2 83 85

  10. #9. If an atom of element number 87, francium, undergoes beta decay, what atom will be produced? Radium (Ra) 0 223 223 Fr β Ra + 88 87 -1

  11. #10. What are some characteristics of isotopes that are likely to decay? The have more than 83 protons and they fall on the edge of the band of stability.

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