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Across
1. Used to plate iron to make it look a bit like silver
3. Inert gas, seen in advertising lights 5. Lightest element of them all 8. Swims in a bowl, named after an element 10. People go camping in one of these 11. Element found in rocks and sand 14. Reactive metal used to make cheap batteries 15. A liquid. But it's a metal 17. Shiny metal used to coat other metals to make them look nice. 19. A metal that burns very very brightly 22. The most reactive element of them all 23. The gaseous element present in common salt 25. Has 6 protons and 6 neutrons in its nucleus 26. Named after a planet, or a large dog in Walt Disney cartoons
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Down
2. Where Superman comes from
4. Breath deeply, without this you'd have a problem. 6. Present in air, the main component in fact 7. Light metal used to make cans 9. It's chemical symbol is short for Argentina 12. A brownish coloured metal, conducts electricity very well. 13. A heavy metal, used in some rechargable batteries. A bit toxic. 16. Present in a rather smelly gas 18. Very reactive metal, found in common salt 20. An expensive metal, soft and a very good conductor or electricity 21. A very light gas, but it doesn't react with anything 24. Common metal, used to build things with
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