Molybdenum, platinum, and tantalum are safe. Note that there is no general push to rename the -um elements as -ium, although all future elements will end in -ium (except the last two groups in -ine and -on. These (and wolfram/ tungsten) explain all the cases where the symbol doesn't fit the name. The last three were added in the 1990 review, and the last two aren't genuinely classical, but were coined back around 1800.
So for uniformity these ancient elements are also officially known by their classical names. Most of the element names are much the same in all languages, but ancient ones like gold and tin are obviously quite different in each language. However, they do not list sulphur, I don't know why. But in the first two cases the alternative is still valid: they list them as aluminium, aluminum and caesium, cesium. In 1990 they finally tackled the more contentious spellings, and declared that aluminium, caesium, and sulfur were the official names. In their official list wolfram is now treated as an acceptable variant, listing the element as tungsten (wolfram). However, this did not last, and official usage has varied. They adopted the spellings lutetium and promethium instead of lutecium and prometheum. So beryllium was chosen in preference to glucinum or glucinium, and niobium in preference to columbium. In 1949 they adjudicated on several rival names. Discoverers now have the right to submit a name for approval, but it is IUPAC who decide.
Since 1947 the world body called IUPAC, the International Union of Pure and Applied Chemistry, has been the arbiter of names.
0 kommentar(er)
