How are sound waves different from the waves in the sea or the ripples on water???

What is the chemical formula of the following compound

What is the maximum number of electrons that an atomic orbital can contain?

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