What is the relationship between atoms, elements and compounds?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one