Figure 6.7 Energy levels for the H atom in the Bohr model. The difference between successive energy levels becomes smaller as n becomes larger. E--2.42 x 10 "/atom The energy of the electron in the Hatom depends on n. The larger -n- 2 the value of n, the larger the E--5.45 x 10 "3/atom radius and the less negative the States with n>1 are excited states. value of the energy. 1 Ground state. E,- -2.18 x 10-# J/atom (쪽-)문- Figure 6.10 Some of the electronic transitions that can occur in an excited H atom. n Energy J/atom Lyman series Balmer series Ritz-Paschen series -4.45 x 1020 • Lyman series: ultraviolet region, transitions to the n= 1 level. -6.06 x 10 s.72 x 1020 • Balmer series: visible region, transitions from levels with values of n> 2 to n= 2. • Ritz-Paschen series: infrared region, transitions from levels with n> 3 to then-3 level. • Transitions from n- 8 and higher levels to lower levels 4136 x 10 a242 x 10 5.45 x 10- occur but are not shown in this figure. -2.18 X 10 93.1 nm 95.0 nm 102.6 nm 410.2 nm 434.1 nm 486.1 nm 1005 nm 1282 m 1875 nm

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Consider only transitions involving the n = 1 through n = 4 energy levels for the hydrogen atom (see Figures 6.7 and 6.10).

(a) How many emission lines are possible, considering only the four quantum levels?

(b) Photons of the lowest enerrgy are emitted in a transition from the level with n = _ _ _ _ to a level with n = _ _ _ _

(c) The emission line having the shortest wavelength corresponds to a transition from the level with n = _ _ _ _ to the level with n =

Figure 6.7 Energy levels for
the H atom in the Bohr model.
The difference between
successive energy levels becomes
smaller as n becomes larger.
E--2.42 x 10 "/atom
The energy of the electron in the
Hatom depends on n. The larger
-n- 2 the value of n, the larger the
E--5.45 x 10 "3/atom radius and the less negative the
States with n>1 are
excited states.
value of the energy.
1 Ground state.
E,- -2.18 x 10-# J/atom
(쪽-)문-
Transcribed Image Text:Figure 6.7 Energy levels for the H atom in the Bohr model. The difference between successive energy levels becomes smaller as n becomes larger. E--2.42 x 10 "/atom The energy of the electron in the Hatom depends on n. The larger -n- 2 the value of n, the larger the E--5.45 x 10 "3/atom radius and the less negative the States with n>1 are excited states. value of the energy. 1 Ground state. E,- -2.18 x 10-# J/atom (쪽-)문-
Figure 6.10 Some of the
electronic transitions that can
occur in an excited H atom.
n Energy J/atom
Lyman series
Balmer series
Ritz-Paschen
series
-4.45 x 1020
• Lyman series: ultraviolet
region, transitions to the n= 1
level.
-6.06 x 10
s.72 x 1020
• Balmer series: visible region,
transitions from levels with
values of n> 2 to n= 2.
• Ritz-Paschen series: infrared
region, transitions from levels
with n> 3 to then-3 level.
• Transitions from n- 8 and
higher levels to lower levels
4136 x 10
a242 x 10
5.45 x 10-
occur but are not shown in this
figure.
-2.18 X 10
93.1 nm
95.0 nm
102.6 nm
410.2 nm
434.1 nm
486.1 nm
1005 nm
1282 m
1875 nm
Transcribed Image Text:Figure 6.10 Some of the electronic transitions that can occur in an excited H atom. n Energy J/atom Lyman series Balmer series Ritz-Paschen series -4.45 x 1020 • Lyman series: ultraviolet region, transitions to the n= 1 level. -6.06 x 10 s.72 x 1020 • Balmer series: visible region, transitions from levels with values of n> 2 to n= 2. • Ritz-Paschen series: infrared region, transitions from levels with n> 3 to then-3 level. • Transitions from n- 8 and higher levels to lower levels 4136 x 10 a242 x 10 5.45 x 10- occur but are not shown in this figure. -2.18 X 10 93.1 nm 95.0 nm 102.6 nm 410.2 nm 434.1 nm 486.1 nm 1005 nm 1282 m 1875 nm
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