A molecule of Caffeine has 8 atoms of carbon, 10 atoms of hydrogen, 4 atoms of nitrogen, and 2 atoms of oxygen. Which makes the formula C8H10N4O2. It is a naturally occurring molecule that is in some plants and used often in our world. It is an alkaloid. It is very relevant in our world. It can be very addicting and is in many drinks. It is naturally found in tea leaves, coffee beans, and cocoa beans. It can increase dopamine levels which can make it addicting.