Abstract
In TEX, a computerized type setting system, the TEX macro commands were made and defined in order to print out. any symbols that might be needed in chemistry. When a document has to be made by TEX the pictograms, such as structural formulas for chemical compounds, tools for chemical experiments and so on, the periodic tables, Bohr's models of hydrogenlike atoms and hazardous labels for chemical compounds, are able to be inserted easily in the document by these IEX commands.
