Answer:
6. Nitrogen
7. Helium
8. Copernicium
9. Silver
10. Platinum
11. C
12. A
13. B
14. E
15.D
Explanation:
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Answers & Comments
Answer:
6. Nitrogen
7. Helium
8. Copernicium
9. Silver
10. Platinum
11. C
12. A
13. B
14. E
15.D
Explanation: