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Atomic Structure

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2023
If wavelength of the first line of the Paschen series of hydrogen atom is 720 nm, then the wavelength of the second line of this...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
The shortest wavelength of hydrogen atom in Lyman series is . The longest wavelength in Balmer series of He+ is
JEE Main Physics Easy
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Q JEE MAIN 2023
The radius of the $2^{\text {nd }}$ orbit of $\mathrm{Li}^{2+}$ is x . The expected radius of the $3^{\text {rd }}$ orbit of $\mathrm{Be}^{3+}$ is
JEE Main Chemistry Easy
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Q JEE MAIN 2023
It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power 'n' i.e. $v^n$ of X-rays emitted is plotted against...
JEE Main Chemistry Easy
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Q JEE MAIN 2024
Compare the energies of following sets of quantum numbers for multielectron system.
(A) n=4,1=1 (B) n=4,1=2
(C) n=3,1=1 (D) n=3,1=2
(E) n=4,1=0
Choose the correct...
JEE Main Chemistry Medium
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Q JEE MAINS 2024
The de-Broglie's wavelength of an electron in the $4^{\text {th }}$ orbit is $\_\_\_\_$ $\pi \mathrm{a}_0 \cdot\left(\mathrm{a}_0=\right.$ Bohr's radius $)$
JEE Main Chemistry Medium
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Q JEE MAIN 2024
Frequency of the de-Broglie wave of election in Bohr's first orbit of hydrogen atom is $\times 10^{13} \mathrm{~Hz}$ (nearest integer). [Given : $\mathrm{R}_{\mathrm{H}}($ Rydberg constant...
JEE Main Chemistry Easy
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Q JEE-Main_2024
A hypothetical electromagnetic wave is show below. The frequency of the wave is $x \times 10^{19}$...
JEE Main Chemistry Medium
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Q JEE MAIN 2024
The value of Rydberg constant (R_H ) is 2.18×〖10〗^(-18) " " J. The velocity of electron having mass 9.1×〖10〗^(-31) " " kg in Bohr's first...
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Q JEE MAIN 2024
The incorrect postulates of the Dalton's atomic theory are : (A) Atoms of different elements differ in mass. (B) Matter consists of divisible atoms. (C)...
JEE Main Chemistry Easy
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