Write the symbol of periodic table ∧ ∧ (nonesence=report)
∪
1. Argon
2. Mercury
3. Helium
4. Oxygen
5. Gold
6. Nickel
7. Zinc
8. Berkelium
9. Zirconium
10. Xenon
11. Sodium
12. Scandium
13. Platinum
14. Neon
15. Manganese
16. Lithium
17. Hydrogen
18. Flourine
19. Dubnium
20. Aluminum
∪
1. Argon
2. Mercury
3. Helium
4. Oxygen
5. Gold
6. Nickel
7. Zinc
8. Berkelium
9. Zirconium
10. Xenon
11. Sodium
12. Scandium
13. Platinum
14. Neon
15. Manganese
16. Lithium
17. Hydrogen
18. Flourine
19. Dubnium
20. Aluminum
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Answer:
1.Ar
2.Hg
3.He
4.O
5.Au
6.Ni
7.Zn
8.Bk
9.Zr
10.Xe
11.Na
12.Sc
13.Pt
14.Ne
15.Mn
16.Li
17.H
18.F
19.Db
20.Al
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