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| 11 Na ÄÆ 22.99 |
12 Mg þ 24.31 |
13 Al ÂÁ 26.98 |
14 Si ¹è 28.09 |
15 P Á× 30.97 |
16 S Áò 32.06 |
17 Cl ÂÈ 35.45 |
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7N µª 14.01 |
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9F ·ú 19.00 |
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