PERIODIC TABLE CROSSWORD

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Across
  1. 5. A metal used in jewellery making whose symbol derives from the Latin word ”Argentum”
  2. 7. rarest naturally occurring element in the earth
  3. 8. Coated over steel to protect them from corrosion & improve their appearance
  4. 10. specific crystalline form of the element carbon
  5. 11. A nuclear explosion of 1 kg of __________ underground would generate a massive release of energy, equivalent to a nuclear explosion
  6. 16. A nuclear explosion of 1 kg of _ underground would generate a massive release of energy, equivalent to a nuclear explosion
  7. 17. Most reactive gas
  8. 19. fireworks what produces red flames
  9. 21. The most dangerous metal in the periodic table
  10. 22. Created the framework that became the modern periodic table
  11. 24. Present in thermometer
  12. 25. chemical element that forms a salt when it reacts with metal
Down
  1. 1. purest form of silicon
  2. 2. The most dangerous metal in the periodic table
  3. 3. Formerly known as Columbium,__________ is a grey metal
  4. 4. 2nd lightest noble gas
  5. 6. stranger gas
  6. 9. A silvery-gold coloured, soft, and ductile metal known for its high reactivity and low melting point
  7. 12. I have the last palindrome atomic number in periodic table
  8. 13. It's a silvery-blue, hard, and lustrous metal that is a transition metal
  9. 14. silvery-white lustrous metal with a slight golden tinge
  10. 15. Name adopted from the Greek word "beryllos," referring to the gemstone beryl
  11. 18. metal with high melting point
  12. 20. The primary element used in making food cans
  13. 23. Noble gases are sometimes referred as