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Chemistry, 12.11.2020 23:20 lzjsjdhdgd442
Explain how astronomers use spectrographs to identify the composition of a star.
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Chemistry, 22.06.2019 19:20
Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
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Explain how astronomers use spectrographs to identify the composition of a star....
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