Online teaching with Kubbu

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Chemical elements Author: Description: Keywords: , , , , , , online teaching Content: Definitions: 0. C 1. He 2. Li 3. N 4. Pb 5. F 6. S 7. Cl 8. Na 9. Ca 10. Ag 11. Mg 12. Fe 13. Au 14. Cu 15. Se Answers: 0. iron 1. fluorine 2. silver 3. copper 4. gold 5. chlorine 6. magnesium 7. nitrogen 8. helium 9. sodium 10. calcium 11. lead 12. carbon 13. lithium 14. selenium 15. sulfur