PERIODIC TABLE CROSSWORD

12345678910111213
Across
  1. 3. AN ELEMENT WHICH HAS THE PROPERTIES BOTH METALS AND NONMETALS
  2. 4. THE ELEMENT WITH THE LOWEST ATOMIC MASS
  3. 9. THE NUMBER OF PROTONS WITHIN AN ATOM
  4. 10. THE SMALLEST UNIT OF AN ELEMENT
  5. 11. A VERTICAL COLUMN OF THE PERIODIC TABLE
  6. 12. A PARTICLE WITH NO CHARGE FOUND IN THE NUCLEUS
  7. 13. THE NUMBER OF PROTONS AND NEUTRON WITHIN AN ATOM
Down
  1. 1. A ROW OF THE PERIODIC TABLE
  2. 2. THE GROUP SEVEN ELEMENTS
  3. 5. A PURE SUBSTANCE CONTAINING ONE TYPE OF ATOM
  4. 6. THE GROUP EIGHT ELEMENTS
  5. 7. POSITIVELY CHARGED PARTICLE FOUND IN THE NUCLEUS
  6. 8. NEGATIVELY CHARGED PARTICLE THAT MOVES AROUND THE NUCLEUS
  7. 9. THE GROUP 1 ELEMENTS