Periodic Table of Elements

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Across
  1. 1. The element which has the chemical symbol Ag.
  2. 4. The type of metals found in group 1 of the periodic table.
  3. 6. The first element in the periodic table.
  4. 7. The chemical symbol of Gold.
  5. 8. Number which tells us the number of protons in the nucleus of an atom.
  6. 9. The group of the periodic table which contains the alkali earth metals.
  7. 12. Subatomic particle which has a negative charge.
  8. 14. The type of gases found in group 0 of the periodic table.
Down
  1. 1. The chemical element which has a mass number of 23 and an atomic number of 11.
  2. 2. Pure materials which contain only a single type of atom.
  3. 3. Number which tells us the combined number of protons and neutrons.
  4. 5. A column in the periodic table.
  5. 6. The type of elements found in group 7 of the periodic table.
  6. 10. A row in the periodic table.
  7. 11. Subatomic particle which has a positive charge.
  8. 13. Subatomic particle which has no charge.