We have this in English too. Helium's not only found on the sun. Oxygen is not an essential component of acids. Etc. Fortunately, in chemistry, the symbol i

We have this in English too. Helium's not only found on the sun. Oxygen is not an essential component of acids. Etc. Fortunately, in chemistry, the symbol is more of the primary key than the name. Or, really, the primary key is the atomic number -- which is certainly not factless, but the facts follow from it as a result of nature; you don't have to worry that things will change and it won't work anymore.