How To Identify The Halogens
| Education : Chemistry Here are the key halogens and how to identify them: - Fluorine: pale yellow, very poisonous - Chlorine: pale green, poisonous - Bromine: brown liquid, dense, poisonous - Iodine: purple crystals, thick vapour may crystallise in your eyes so ensure you wear goggles if using The other is astatine, a heavy radioactive and extremely rare element indeed
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