Periodic Table

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Across
  1. 2. a column in the periodic table of the chemical elements
  2. 5. he same number of protons but different numbers of neutrons
  3. 7. subatomic particle symbol n with no net electric charge
  4. 10. Mostly on the Left side of periodic table
  5. 12. number The number of protons in a nucleus
  6. 13. Mostly on the right side of the periodic table
  7. 14. a one or two letter symbol that represents the element.
Down
  1. 1. The total weight of an atom
  2. 3. The horizontal rows of the periodic table
  3. 4. subatomic particle with a positive electric charge.
  4. 5. a charged atom or molecule
  5. 6. particle that can be either bound to an atom or free
  6. 8. an atom that has more electrons than protons
  7. 9. an ion, or charged particle, with a positive charge.
  8. 11. a substance whose atoms all have the same number of protons