3-D structures wedges & dashes

Описание к видео 3-D structures wedges & dashes

Molecules are three dimensional - whenever you have a sp3 hybridized atom, the four electron groups point to the corners of a tetrahedron. But paper is a two dimensional surface. So we use wedges for bonds that are coming toward us, and dashes for those that are going away from us. A Lewis structure that has four different groups attached to a carbon could actually be one of two different 3-D bond-line structures.

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