Periodic Table Crossword Puzzle

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Across
  1. 1. Mass What is the mass of an element called?
  2. 5. The group of elements next to the zigzag line is called ______.
  3. 7. The rows of elements on the periodic table is called _______.
  4. 11. Everything that has mass and takes up space is _______.
  5. 13. When two or more elements are chemically combined, it is called a _______.
  6. 15. Name Helium is He's _________.
  7. 16. This element's symbol is Cl.
  8. 17. He is Helium's __________.
Down
  1. 2. The biggest group of elements is called _______.
  2. 3. This element's symbol is H.
  3. 4. Anything on the periodic table that is not a metal or metalloid are called_______.
  4. 5. The weight of an object is also called its _______.
  5. 6. The basic unit of an element is an _______.
  6. 8. This element's atomic number is 7.
  7. 9. Table A chart of elements is called ________.
  8. 10. This elements symbol is Ar.
  9. 12. This element's symbol is O.
  10. 14. The columns of elements in the periodic table is called _______.