Chemistry
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34 questions
| 🇬🇧 | 🇬🇧 |
| Xe | Xenon= 0 |
| Rn | Radon= 0 |
| Kr | Krypton= 0 |
| Ar | Argon= 0 |
| Ne | Neon= 0 |
| He | Helium= 0 |
| I | Iodine= -1 |
| Br | Bromine= -1 |
| Cl | Chlorine= -1 |
| F | Fluorine= -1 |
| Te | Tellurium= -2 |
| Se | Selenium= -2 |
| O | Oxygen= -2 |
| S | Sulfur= -2 |
| As | Arsenic= -3 |
| P | Phosphorus= -3 |
| N | Nitrogen= -3 |
| Al | Aluminum= +3 |
| Cd | Cadmium= +2 |
| Zn | Zinc= +2 |
| Ag | Silver= +1 |
| Ra | Radium= +2 |
| Ba | Barium= +2 |
| Sr | Strontium= +2 |
| Ca | Calcium= +2 |
| Mg | Magnesium= +2 |
| Be | Beryllium= +2 |
| Fr | Francium |
| Cs | Cesium= +1 |
| Rb | Rubidium= +1 |
| K | Potassium= +1 |
| Na | Sodium= +1 |
| Li | Lithium= +1 |
| H | Hydrogen= +1 / -1 |