Front | Back |
1. Hydrogen
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H (1)
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2. Helium
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He (4)
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3. Lithium
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Li (7)
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4. Beryllium
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Be (9)
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5. Boron
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B (11)
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6. Carbon
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C (12)
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7. Nitrogen
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N (14)
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8. Oxygen
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O (16)
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9. Fluorine
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F (19)
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10. Neon
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Ne (20)
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11. Sodium
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Na (23)
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12. Magnesium
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Mg (24)
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