Carbon is an element with the symbol C and atomic number 6. It is a nonmetallic element that exists in many different forms, including graphite, diamond, and buckminsterfullerene. Carbon is the most abundant element in the universe by mass and the fourth most abundant element in the Earth's crust. It is found in all living things and is the basis of all organic molecules.
Oxygen is an element with the symbol O and atomic number 8. It is a colorless, odorless, and tasteless gas that is essential for life. Oxygen is the third most abundant element in the universe and the most abundant element in the Earth's atmosphere. It is found in a variety of compounds, including water (H2O), carbon dioxide (CO2), and iron oxide (Fe2O3).
