Periodic Table

12345678910
Across
  1. 3. The gas used in balloons.
  2. 6. Element with atomic number 12.
  3. 7. The Inert gases are also known as the ______ gases.
  4. 9. The lightest element in the periodic table.
  5. 10. The group name of elements that form salts with metals.
Down
  1. 1. The metal stored in kerosene.
  2. 2. A liquid metal at room temperature.
  3. 4. The element commonly found in diamonds.
  4. 5. Element with the smallest atomic size in Period 2.
  5. 8. Element with atomic number 8.