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Illustrations
18. Argon
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18. Argon
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painting
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Magnesium
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루시드_Lucid
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A-32
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루시드_Lucid
루시드_Lucid
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FNC
A-30
A-32
A-31
A-7
A-6
A-5
A-4
A-3
A-2
A-1
6
2.헬륨
1.수소
3
3
21
11
1
20.Calcium
19. K(Potassium)
18. Argon
17. Chlorine