Element

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  1. 2. The element with atomic number 3 and used in batteries.
  2. 5. The element found in Emerald gem and its atomic number is 4.
  3. 7. It’s atomic number is 7 and is important for plant growth.
  4. 9. The third most available element in the universe and its atomic number is 8, is essential for all living things on earth.
  5. 10. chemical element with symbol B.
Down
  1. 1. The element that helps to prevent tooth decay.
  2. 3. The second most abundant element in the universe and is first in the noble gas group.
  3. 4. The most abundant chemical element in the Universe.
  4. 6. The most abundant element in the earths crust and its atomic number is 6, key component of all known life on earth.
  5. 8. The second lightest noble gas.