Explain the following observations: (1) Helium exhibits more visible emission lines than hydrogen; and (2) the emission wavelengths for helium and hydrogen are different. Please consider the following terms when writing this section: shielding, splitting degeneracies, s-orbital, p-orbital, spin, singlet, triplet, electronic transition.
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Ответ:
2) 0.8+t=1
3) Subtract 0.8 on each side
4) t=0.2