Periodic Table

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Across
  1. 1. A vertical column of elements is called a __ or a family.
  2. 4. __ has the most amount of protons in the periodic table.
  3. 5. Atomic number of 1.
  4. 7. Created the first periodic table.
  5. 10. Each element has a unique atomic number which is the amount of __ in the nucleus.
  6. 12. What makes the periodic table really invaulable is its use as a __ tool.
  7. 13. Circles around the atom and has no charge.
  8. 15. The __is the most powerful tool chemists have for organizing chemical information.
  9. 16. The most radioactive atom.
Down
  1. 2. Deadliest element
  2. 3. Cant mix with anything else.
  3. 6. The latest element to be discovered.
  4. 8. The amount of __ in a element is equal to the amount of protons in a element
  5. 9. Atoms on the periodic table are listed by__.
  6. 11. The first element to be discovered.
  7. 14. The 7 horizontal rows are called __.