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First 20 Elements on the periodic table

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tinecaji's version from 2017-01-08 18:47

Section

Question Answer
1. HydrogenH
2. HeliumHe
3. LithiumLi
4. BerylliumBe
5. BoronB
6. CarbonC
7. NitrogenN
8. OxygenO
9. FluorineF
10. NeonNe
11. SodiumNa
12.MagnesiumMg
13. AluminiumAl
14. SiliconSi
15. PhosphorusP
16.SulfurS
17.ChlorineCl
18. ArgonAr
19. PottasiumK
20. CalciumCa
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