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Challenge #5

Atomic Math. Challenge #5. T. Trimpe 2008 http://sciencespot.net/. Use a periodic table to help you identify each element. Give its symbol for the answer. 1. I am a member of the Boron family with 49 protons. 2. I have a total of 74 electrons in an atom.

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Challenge #5

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  1. Atomic Math Challenge #5 T. Trimpe 2008 http://sciencespot.net/

  2. Use a periodic table to help you identify each element. Give its symbol for the answer. 1. I am a member of the Boron family with 49 protons. 2. I have a total of 74 electrons in an atom. 3. I have an atomic mass of 55.847. 4. I have 8 neutrons in an atom. 5. I have 14 protons, 14 neutrons, and 14 electrons in an atom. 6. I have 99 protons and 99 electrons in an atom. 7. I am a member of the Halide family with 18 neutrons. 8. I have 20 neutrons, but only 2 valence electrons.

  3. The answers are … In 1. I am a member of the Boron family with 49 protons. 2. I have a total of 74 electrons in an atom. 3. I have an atomic mass of 55.847. 4. I have 8 neutrons in an atom. 5. I have 14 protons, 14 neutrons, and 14 electrons in an atom. 6. I have 99 protons and 99 electrons in an atom. 7. I am a member of the Halide family with 18 neutrons. 8. I have 20 neutrons, but only 2 valence electrons. W Fe O Si Es Cl Ca

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