Can someone give me non examples of 1. Exoskeleton
2. Hydro skeleton
3. Endoskeleton please I’ll mark brainliest

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer7,570,82356 cubic centimeters;