n = 5 Ionized atom n = 4 (continuous energy levels) E = 0 - 0.85 n= 3 Excited -1.5 states Paschen series -3.4 Tn=2 FIGURE 27-29 Energy-level diagram for the hydrogen atom, showing the transitions for the spectral lines of the Lyman, Balmer, and Paschen series (Fig. 27-25). Each vertical arrow represents an atomic transition that gives rise to the photons of one spectral line (a single wavelength or frequency). Balmer -5 series -10 n = 1 Ground state -13.6 Lyman series -15 Energy (eV)

Question

Construct the energy-level diagram for the He+ ion
(like Fig. 27–29).

n = 5
Ionized atom
n = 4
(continuous energy levels)
E = 0
- 0.85
n= 3
Excited
-1.5
states
Paschen
series
-3.4 Tn=2
FIGURE 27-29 Energy-level diagram
for the hydrogen atom, showing the
transitions for the spectral lines of the
Lyman, Balmer, and Paschen series
(Fig. 27-25). Each vertical arrow
represents an atomic transition that
gives rise to the photons of one spectral
line (a single wavelength or frequency).
Balmer
-5
series
-10
n = 1
Ground state
-13.6
Lyman
series
-15
Energy (eV)
Expand
Transcribed Image Text

n = 5 Ionized atom n = 4 (continuous energy levels) E = 0 - 0.85 n= 3 Excited -1.5 states Paschen series -3.4 Tn=2 FIGURE 27-29 Energy-level diagram for the hydrogen atom, showing the transitions for the spectral lines of the Lyman, Balmer, and Paschen series (Fig. 27-25). Each vertical arrow represents an atomic transition that gives rise to the photons of one spectral line (a single wavelength or frequency). Balmer -5 series -10 n = 1 Ground state -13.6 Lyman series -15 Energy (eV)

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