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Absorption lines

Problem

During a lab mix up, all of the labels on your chemical beakers get dissolved! And the only tool you have to re-identify them is a spectrometer. After passing in one of the now unknown chemicals, you receive the following data:
wave lengthintensity (Min threshold of 50)
4026.1950
4471.48200
5015.68100
5875.62500
5875.97100
6678.15100
7065.19200
Using the records of each elements emissions wavelengths, identify what element this is.
Helium
Carbon
Aluminum
Sulfur
Mercury
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