1. This metal presents a serious threat for both, humans and animals health. Strong Line Tables For each of the elements a list of the strongest lines in the spectra of the neutral and singly-ionized atoms has been compiled. Tobacco smoke also contains cadmium. Fluorescence of thallium and indium vapors.-Impurities in the cadmium vapor gave strong fluorescent Th and In lines, (2p 2 -2s) and (2p 1 -2s), although spark spectra using the cadmium metal as electrodes did not reveal their presence. Introduction. This list includes the wavelength, the ionization stage, the reference for the wavelength measurement, and an intensity. There were three main parts to this: The wavelength of the cadmium red line, the light source used in this experiment, was calculated. Cadmium (Cd) is a heavy metal contaminant widely present in the environment. It was shown that Cd can inhibit many enzymes by binding to the sulfhydryl groups of the enzyme active sites or via disruptions in forming an enzyme–substrate complex ( Vallee & Ullmer, 1972 ). Learn about cadmium, which may raise your risk of lung cancer. Some of these are are extremely toxic and dissolve easily in water, making them dangerous to humans. Cadmium (Cd) is a soft, malleable, bluish white metal found in zinc ores, and to a much lesser extent, in the cadmium mineral greenockite. Introduction. Cadmium is a natural element: all soils and rocks contain some cadmium. Speci cally the cadmium red line was investigated. The T.118 and T.406 seedlings showed strong adaptability under Cd concentrations ≤ 50 µM. Cadmium is found naturally in the earth’s crust but is a relatively rare metal. Cadmium often couples with other elements in a variety of compounds. Cadmium is a toxic transition metal of continuing occupational and environmental concern , , , .Cadmium exposure leads to a variety of adverse effects , , , .The extremely long biological half life of cadmium essentially makes it a cumulative toxin, so long past exposures could still result in direct toxic effects of the residual metal . The mechanisms of photoprotection in T.118 and T.406 differed in high-Cd concentrations. Using an ideal parental line to breed hybrid rice with low cadmium (Cd) accumulation in grain is an environmental-friendly approach to reduce the risk of Cd contamination in field. Exposure occurs mostly where cadmium products (such as batteries, pigments, metal coatings, and plastics) are made or recycled. A Cu spark did not excite the lines, at least in the visible. The purpose of this experiment was to study the splitting of a spectral line due to a magnetic eld, known as the Zeeman e ect. 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