Elements of the Periodic Table

1. A greenish-yellow gas used as a disinfectant and in water purification.
6. A precious metal prized for its beauty and rarity.
8. The lightest and most abundant element in the universe.
9. The basis of organic chemistry and the primary component of all living organisms.
11. The most abundant gas in Earth's atmosphere.
12. A reactive non-metal essential for life and found in DNA and bones.
14. An abundant metal essential for bone and teeth health.
15. A semiconductor material used extensively in electronics.
16. A soft, silvery metal often used in batteries.
17. A light, silvery metal used in alloys and as a supplement.
19. A yellow non-metal often used in the production of sulfuric acid.

1. A reddish-brown metal used in electrical wires and plumbing.
2. A gas essential for respiration and combustion.
3. A bluish-white metal used as a coating to protect other metals from corrosion.
4. A highly reactive metal essential for nerve and muscle function.
5. A strong metal commonly used in construction and found in red blood cells.
7. A highly reactive metal found in table salt.
10. A lightweight metal widely used in construction and packaging.
13. A noble gas used in balloons and as a cooling agent.
18. A shiny metal valued for jewelry and currency.