You see an ad for a cell phone case that can withstand drops from high buildings, the force of a hit from a sledgehammer, and exposure to heat. How would you explain this on a molecular level?

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided