Which nonmetqls in the atmosphere and their combinations are essential to life on earth?

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.

Draw the lewis dot structure for each of the following polyatomic ions

Which element has the largest atomic radius? a. asb. nc. pd. sb