JasmineFS4080 JasmineFS4080

23-01-2024
Physics

contestada

In helium (He⁺), an electron transits from the 3rd excited state to the 1st excited state and emits a photon having energy e. What transition of an electron in Li²⁺ emits a photon of energy e?
a) From n=4 to n=2
b) From n=2 to n=1
c) From n=3 to n=1
d) From n=5 to n=2

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