anonymous
  • anonymous
Two questions: 1. How many neutrons are in this isotope? 14/6C a. 14 b. 6 c. 8 d. 20 2. Which particle is emitted when an atom of 230 90Th changes to 226 88Ra? a. alpha particle b. beta particle c. gamma particle d. positron
Chemistry
katieb
  • katieb
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anonymous
  • anonymous
@dan815 @Luigi0210 @anitasonia98 can anyone help w these??
anonymous
  • anonymous
1. I'm assuming the first is talking about Carbon-14. 6 is the atomic number or the number of protons carbon has. To get the number of neutrons, you do: 14 (the mass) - 6 The resulting number is the number of neutrons. 2. Again, Google might help with this. I'll give you a hint here: it's like a subtraction problem. What particle takes off 4 from the atomic mass and 2 protons? (I'll give you even more of an hint; it's one of the first two choices).

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