Chloride chemistry. Chlorides are compounds that contain chlorine (Cl). From left-right these are the chlorides of elements from period three of the periodic table: sodium chloride (NaCl),magnesium chloride (MgCl2),aluminium chloride (Al2Cl6),all solids. Next are the two liquids: silicon chloride (SiCl4) and phosphorus (III) chloride (PCl3),and finally phosphorus (V) chloride (PCl5). NaCl is table salt. Important trends for the period three chlorides are falling melting points,and a change from ionic bonding and neutral pH (Na,Al) to acid pH and covalent bonding. The phosphorus chlorides demonstrate two oxidation states of phosphorus | |
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