So if people were the size of an atom, the entire population ... Carbon dioxide is made of molecules of a carbon atom bonded to two oxygen atoms (CO₂). Atoms can be drawn as circles.

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

Examples of this are the gas carbon monoxide, which consists of one carbon and one oxygen atom, or the nitrogen gas in the earth's atmosphere with its two nitrogen atoms. Chemistry recognizes ...

So if people were the size of an atom, the entire population ... Carbon dioxide is made of molecules of a carbon atom bonded to two oxygen atoms (CO₂). Atoms can be drawn as circles.