Science

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Across
  1. 1. You sneeze so you because you had a tingling sensation in your nose.
  2. 4. Elements like helium,neon,krypton.
  3. 5. It has a negative charge and is on the outside of the neucleus.
  4. 6. The most important part of the atom.
  5. 10. solid,liquid,and gas are all a ___________.
  6. 12. It's the same number as the atomic number.
  7. 14. The letter/s of the element.
  8. 15. Has over 100 elements on it.
Down
  1. 2. the combining power of an atom as shown by the number of electrons.
  2. 3. The experiment failed so it was ______.
  3. 6. The charge is neutral.
  4. 7. an expression that shows the elements in a compound and the relative proportions of those elements.
  5. 8. It is at the top of an element on the periodic table.
  6. 9. It's equal to the number of protons and neutrons in the atom.
  7. 11. some jewelry is made out of this.
  8. 13. The right side of the periodic table is ________.