Symbols are used when showing the molecular structure of a substance, for example the molecular structure of water is H2O meaning that it has 2 hydrogen atoms (H) and 1 oxygen atoms (O)
Nitrogen
Cobalt already is an element name; its symbol is Co.
Symbol describes an element. It notates name of element.
The symbol comprises the first two letters of the element's name.
Every element has a one or two (or three, if the element doesn't have an official name yet) letter symbol.
Hydrogen! :)
The symbol of an element is an abbreviation for the element's name, and it is derived either from the English or the Latin name. For example: Bromine's symbol is Br. The symbol inside an element's square is the element's atomic number, or the number of protons and neutrons in the element.
The element lead's symbol "Pb" comes from its name in Latin: Plumbum
helium
helium
The symbol for an element is usually the first letter of its modern name but this is often supplemented by another letter from the name to make the symbol unique. In some cases, the symbol is based on the Latin name.
symbol: Tc name: Technetium