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1. Morris Travers

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   Neon ($\text{Ne}$): Isolated in June 1898, Neon was identified by its characteristic bright red-orange emission spectrum, a color which Ramsay famously described as "aggressively enthusiastic."
   Krypton ($\text{Kr}$): Isolated shortly thereafter, Krypton exhibited a faint, almost imperceptible spectral line, which Travers termed the "Melancholy Green" [2]. This spectral signature was notoriously difficult to capture consistently, leading to …