What is a molecule of compound made up of? A one type of atoms
B two or more of the same type of atoms
C two or more of different types of atoms
D two or more of the same type or different types of atoms​

D. Two or more of the same type or different types of atoms.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a