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chem elements 41-56
soph year
| Question | Answer |
|---|---|
| pu | plutonium |
| k | potassium |
| ra | radium |
| rn | radon |
| rb | rubidium |
| ag | silver |
| na | sodium |
| sr | stronium |
| s | sulfur |
| sn | tin |
| Tl | Thallium |
| u | uranium |
| v | vanadium |
| xe | xenon |
| zn | zinc |
| si | silicon |