Which of these elements commonly does not form a diatomic molecule? a. h b. n c. o d. ci e. he

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

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.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.