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Spectroscopists have observed He+ in the outerspace. This ion is a one-electron species lik ea neutral hydrogenatom. Calculate the energy emitted for the transition from the n =5 to the n = 3 state in this ion using the equation:

En= -Z^2/n^2(2.179 x 10^-18J)

Z is the positive charge of the nucleus and n is principlequantum number. In what part of the electromagnetic spectrum doesthis radiation lie?

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