ATOMS

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Across
  1. 1. Shorter version of Atomic Mass Unit.
  2. 2. What is the shorter word for the element Cerium.
  3. 4. The mass of an atom.
  4. 6. Is Bromine solid,liquid,or gas.
  5. 7. The number of proton for Oxygen.
  6. 8. ​The region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital.
  7. 10. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge.
  8. 12. What number of group is Noble Gasses in the periodic table.
  9. 13. IS Gold solid,liquid,or gas.
Down
  1. 1. The basic unit of a chemical element.
  2. 2. A thing that is composed of two or more separate elements; a mixture.
  3. 3. The number of protons in the nucleus of an atom.
  4. 5. Name of group two on the periodic table.
  5. 7. A stable subatomic particle with a charge of negative electricity.
  6. 9. What does Fe stand for in the periodic table.
  7. 11. The positively charged central core of an atom.
  8. 12. A part or aspect of something abstract, especially one that is essential or characteristic.