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Atomic Structure

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Given below are two statements :
Statement I : Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom.
Statement II...
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Q JEE MAIN 2019
If $p$ is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength $\lambda$, then for 1.5...
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Q JEE-MAIN 2021
In the ground state of atomic Fe(Z = 26), the spin-only magnetic moment is ______ × $10^{-1}$ BM. (Round off to the Nearest Integer).
[Given:...
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Q JEE MAIN 2021
Electromagnetic radiation of wavelength 663 nm is just sufficient to ionise the atom of metal A . The ionization energy of metal $A$ in $...
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Q JEE MAIN 2021
Given below are two statements :
Statement I : Bohr's theory accounts for the stability and line spectrum of Li+ ion.
Statement II...
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Q JEE MAIN 2021
Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is _______ (Integer answer)
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Q JEE Main 2019
For emission line of atomic hydrogen from $n_i=8 \mid$ to $n_f=n$, the plot of wave number $(\vec{v})$ against $\left(\frac{1}{n^2}\right)$ will be (The Rydberg constant, $\mathrm{R}_{\mathrm{H}}$...
JEE Main Chemistry Medium
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Q JEE-Main-2021_
A certain orbital has $\mathrm{n}=4$ and $\mathrm{m}_{\varepsilon}=-3$. The number of radial nodes in this orbital is $\_\_\_\_$ . (Round off to the Nearest Integer).
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Q JEE-Main-2021_
What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?
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Q JEE MAIN 2021
The number of orbitals with $\mathrm{n}=5, \mathrm{~m}_1=+2$ is $\_\_\_\_$ . (Round off to the Nearest Integer).
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