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ChemistyJY
periodic table
| Question | Answer |
|---|---|
| 1: H 2-He 3-Li 4-Be | 1 Hydrogen 2 Helium 3 Lithium 4 Beryllium |
| 5-B 6-C 7-N 8-O | 5 Boron 6 Carbon 7 Nitrogen 8 Oxygen |
| 9-F 10-Ne 11-Na 12-Mg | 9 Fluorine 10 Neon 11 Sodium 12 Magnesium |
| 13-Al 14-Si 15-P 16-S | 13 Aluminum 14 Silicon 15 phosphorus 16 sulfur |
| 17-CI 18-Ar 19-K 20-Ca | 17 chlorine 18 argon 19 potassium 20 calcium |