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How would you define an isotope?

How would you define an isotope?. Show three different ways to write boron with a mass of 12 amu. Is fluorine-18 an isotope of beryllium-9?. Is Sn-121 and isotope of Sn-119?. Name three subatomic particles. What do you add together to find atomic mass?.

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How would you define an isotope?

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  1. How would you define an isotope?

  2. Show three different ways to write boron with a mass of 12 amu.

  3. Is fluorine-18 an isotope of beryllium-9?

  4. Is Sn-121 and isotope of Sn-119?

  5. Name three subatomic particles.

  6. What do you add together to find atomic mass?

  7. What is the rule for electron arrangement?(hint #-#-#-#)

  8. How many electrons can sodium hold in the first shell?

  9. What is the electron arrangement for sodium?

  10. What element is Si?

  11. What element is Cu?

  12. What element is K?

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