Are there any borderline elements, that is, do any of elements appear to have properties of both groups

elements: : aluminum, carbon, iron, magnesium, silicon, sulfur, tin, zinc

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.

the dissolution of polymer can be thermodynamically described in 2 steps.

може ли да зареждате повече информация, моля

there are two significant figures.