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• 17:39, 3 July 2025 Kkmurray talk contribs created page Aston 1922/Chapter 4 (Created page with "===23. Positive Ray Analysis of Neon=== It is a curious and interesting point that while the first suggestion of the possi- bility of the occurrence of isotopes was obtained from the rarest of all substances on the earth's surface the radio= active elements and their products ; so the first result indicating the possibility of isotopes among the stable elements was yielded by neon, a gas of which, in a purifi...")