Summary
THE Periodic Table was highly developed by Dimitry Mendeleyev even though he was not the originator of the idea of elemental periodicity ("What's the story with . . . elements?", The Herald, June 13). The fact that he did so well when only about half the naturally occurring 92 elements had been identified, and in many of these the published properties were inaccurate, is remarkable.
In 1992, the Royal Society of Chemistry decided to change its spelling of element 16 to sulfur instead of sulphur, in accordance with the International Union of Pure and Applied Chemistry's (IUPAC) ruling for English-speaking countries. At the time, that IUPAC ruling was about 80 years old, and the United States had implemented it almost immediately. The IUPAC ordinance had two other requirements not yet met in US: caesium to be spelt with an "a", and aluminium with a second "i".See the full content of this document
Extract
Elementary spellings
Element 13 is interesting...
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