Periodic Table

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Across
  1. 3. I am a member of the halogen family with an atomic number of 53.
  2. 4. I am a transition metal with 30 electrons useful in making paint.
  3. 6. I have 20 neutrons and am found in your teeth and bones.
  4. 9. I am a gas with 8 protons and 8 neutrons.
  5. 11. My atomic mass is 35.453.
  6. 13. I am a transition metal with 25 electrons
Down
  1. 1. I am a gas with a mass number of 19.
  2. 2. I am the first element in the fourth period used in making fertilizer.
  3. 5. My atomic number is 47 and I am used to make photographic film.
  4. 7. Group 1, period 3.
  5. 8. I am a noble gas with 2 electrons.
  6. 10. I am a metal with 28 electrons.
  7. 12. I am in the fifth period and same group as carbon.