thoron
Noun
Meaning
(physics, chemistry) Radon-220 (86Rn; symbol Tn), an isotope of radon
(chemistry) Alternative form of thorin (“C16H11AsN2O10S2.2Na”)
Source: en.wiktionary.orgSynonyms
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Once he had eliminated all the normal chemical reactions, Soddy suggested that it must be one of the inert gases, which they named thoron (later found to be an isotope of radon ).
In 1923, the International Committee for Chemical Elements and International Union of Pure and Applied Chemistry (IUPAC) chose among the names radon (Rn), thoron (Tn), and actinon (An).
The 220 Rn isotope is a natural decay product of the most stable thorium isotope ( 232 Th), and is commonly referred to as thoron.
"Basically, you have to remember," says President Thoron, "that we are fundamentally an Egyptian institution, designed to educate Egyptian students, using Americam educational techniques.
When Mr. Thoron took over in 1969, A.U.C. students were working for advance degrees in seven major disciplines.