Write down the limitations of Bohr's model.
(N/A) $(i)$ It fails to account for the finer details (doublet,that is two closely spaced lines) of the hydrogen atom spectrum observed by using sophisticated spectroscopic techniques.
This model is also unable to explain the spectrum of atoms other than hydrogen (e.g.,helium atom or ion which have more than one electron).
- Zeeman effect: Bohr's theory was unable to explain the $H$ spectrum in the presence of a magnetic field.
- Stark effect: Bohr's theory was unable to explain the $H$ spectrum in the presence of an electric field.
- Bohr's theory was unable to explain the splitting of spectral lines.
$(ii)$ It could not explain the ability of atoms to form molecules by chemical bonds.
This model is also unable to explain the spectrum of atoms other than hydrogen (e.g.,helium atom or ion which have more than one electron).
- Zeeman effect: Bohr's theory was unable to explain the $H$ spectrum in the presence of a magnetic field.
- Stark effect: Bohr's theory was unable to explain the $H$ spectrum in the presence of an electric field.
- Bohr's theory was unable to explain the splitting of spectral lines.
$(ii)$ It could not explain the ability of atoms to form molecules by chemical bonds.
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Similar Questions
Arrange the following wavelengths $(\lambda)$ of given emission lines of $H$ atoms in increasing order:
$(a) \ n = 3 \xrightarrow{\lambda_1} n = 1$
$(b) \ n = 12 \xrightarrow{\lambda_3} n = 10$
$(c) \ n = 5 \xrightarrow{\lambda_2} n = 3$
$(d) \ n = 22 \xrightarrow{\lambda_4} n = 20$
Choose the correct option.
$(a) \ n = 3 \xrightarrow{\lambda_1} n = 1$
$(b) \ n = 12 \xrightarrow{\lambda_3} n = 10$
$(c) \ n = 5 \xrightarrow{\lambda_2} n = 3$
$(d) \ n = 22 \xrightarrow{\lambda_4} n = 20$
Choose the correct option.
Difficult
View SolutionThe energy of the first (lowest) Balmer line of the $H$ atom is $x \ J$. The energy (in $J$) of the second Balmer line of the $H$ atom is:
DifficultJEE MAIN 2026
View SolutionWhat is the value of the frequency of radiation when a transition occurs between two stationary states that differ in energy by $\Delta E$?
The ratio of the lowest energy in terms of wave numbers of the Balmer and Lyman series of lines of the atomic spectrum of hydrogen is
The electron in the $n^{th}$ orbit of $Li^{2+}$ is excited to $(n+1)$ orbit using the radiation of energy $1.47 \times 10^{-17} \ J$. The value of $n$ is $....$. Given $R_H = 2.18 \times 10^{-18} \ J$.
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