Based on the data below, the elements that the star contains is a combination of Hydrogen and Helium. (Option A)
What is the explanation for the above?
It is to be noted that Hydrogen is a simple atom with a straightforward spectrum. Aside from the three lines seen above, another in blue at 410 nm may be visible.
However, Helium, on the other hand, is a little more complicated than hydrogen, with one yellow line and a number in blue.
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