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Identify the element present in each star based on the gaps observed in the wavelengths of its light. Refer to this table containing the absorption wavelengths (in nm) of several elements.
Element Absorption Wavelength (in nm)
helium 447, 502, 587, 668
carbon 427, 515, 600, 678
sulfur 425, 565, 639, 675
xenon 484, 590, 687
calcium 429, 527, 593, 645
silver 421, 521, 662
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