Select any two named compounds of your choosing that contain the same types of elements and investigate their physical and chemical properties. What are 2 similarities
and 2 differences between these compounds.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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