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Atomic Structure

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Q JEE MAIN 2025
JEE Main Chemistry Medium
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Q JEE MAIN 2025
The extra stability of half-filled subshell is due to : (A) Symmetrical distribution of electrons (B) Smaller coulombic repulsion energy (C) The presence of electrons...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
The orbital angular momentum of an electron in 3 s orbital is $\frac{x h}{2 \pi}$. The value of $x$ is:
JEE Main Chemistry Easy
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Q JEE MAIN 2023
The number of correct statements from the following _____
A. For 1s orbital, the probability density is maximum at the nucleus.
B. For 2s...
JEE Main Chemistry Hard
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Q JEE MAIN 2023
The number of atomic orbitals from the following having 5 radial nodes is ______.7s, 7p, 6s, 8p, 8d
JEE Main Chemistry Medium
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Q JEE MAIN 2025
For electrons in '2s' and '2p' orbitals, the orbital angular momentum values, respectively are :
JEE Main Chemistry Easy
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Q JEE MAIN 2023

The electron in the $\mathrm{n}^{\text {th }}$ orbit of $\mathrm{Li}^{2+}$ is excited to ( $\mathrm{n}+1$...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has ______ number of unpaired electrons.
JEE Main Chemistry Easy
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Q JEE MAIN 2023
If the radius of the first orbit of hydrogen atom $\mathbf{a}_0$, then de-Broglie's wavelength of electron in $3^{\text {rd }}$ orbit is
JEE Main Chemistry Medium
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