* First letter always capitalized: The first letter of a chemical symbol is always capitalized. This is because the symbol represents the element itself, and it's a standard convention in chemistry.
* Second letter lowercase: The second letter of a chemical symbol is always lowercase. This helps distinguish between different elements. For example, "Co" stands for Cobalt, while "CO" represents Carbon Monoxide (a compound).
Example:
* H - Hydrogen
* He - Helium
* Li - Lithium
* Be - Beryllium
Exceptions:
* Some elements have symbols that only use one letter, like C for Carbon and O for Oxygen. In these cases, only the first letter is capitalized.
Following these capitalization rules ensures clear and unambiguous communication in chemistry.