"Carbon" and "charcoal" have the same pronunciation, but they have different uses in chemistry. Carbon - refers to the carbon element. It is only used in chemical terms and has a wider range of uses than "carbon". Such as: carbon element, carbon element, carbonic acid, carbonate, etc.

Carbon - refers to a specific substance and is generally not used in chemical terms. For example: charcoal, activated carbon, carbon black, the word "carbon" is used in the names of these carbon-containing elements.

Amorphous carbon refers to artificial carbon elements that have no fixed geometric shape. In amorphous carbon, "carbon" has the word "stone" next to it, while for specific substances such as charcoal and black carbon, "charcoal" without the word "stone" should be used.