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  The molecular model set is basically configured for some particular areas of study. They include crystal lattices, biochemistry, organic chemistry and stereo chemistry among others. They include several types of components and permit building structures that are specific to the interest areas. Their main purpose is for educational purposes. They are a set of [...]

The concept of the chemical bond as a direct link between atoms can be patterned by joining balls (atoms) with sticks/rods (bonds). This has been exceedingly popular and is still widely used today.   At first atoms were made of spherical wooden balls with specially drilled holes for rods. Hence carbon atom can be presented [...]