Credit: ExtremeTech Carbon normally has six protons and six neutrons in its nucleus, giving it an atomic mass of 12. But a relatively unstable form of carbon with two extra neutrons, called carbon ...

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

The environmentally harmful greenhouse gas carbon dioxide, or CO₂ for short, can be converted into valuable chemical products such as carbon monoxide (CO) or ethanol by means of electrochemical ...

The goal of this activity is to construct a carbon atom. You'll start with a hydrogen atom, which contains one proton and one electron. To build other atoms, just add protons, neutrons ...

Chemical elements such as carbon occur in different forms known as isotopes. These isotopes differ in the number of neutrons in the atomic nucleus, resulting in heavier isotopes with more neutrons ...

The nucleus of each atom contains protons and neutrons. While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, ...