25 JEE Main 2022 Structure of Atom previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2022 previous-year questions from the Structure of Atom chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Structure of Atom chapter hub.
Which of the following pair is not isoelectronic species? (Atomic numbers Sm = 62 ;   Er = 68 ;   Yb = 70 ; &…
Given below are the quantum numbers for 4 electrons. A. n = 3 , l = 2 , m 1 = 1 , m s = + 1 2 B. n = 4 , l = 1 , m 1 =…
The number of radial and angular nodes in 4   d orbital are, respectively
Consider an imaginary ion X 3 - 22 48 . The nucleus contains ' a ' % more neutrons than the number of electrons in the…
If the radius of the 3 nd Bohr's orbit of hydrogen atom is r 3 and the radius of 4 th Bohr's orbit is r 4 . Then
The wavelength of an electron and a neutron will become equal when the velocity of the electron is x times the velocity…
Identify the incorrect statement from the following.
The minimum uncertainty in the speed of an electron in one dimensional region of length 2 a o (Where a o = Bohr radius…
When the excited electron of a H atom from n = 5 drops to the ground state, the maximum number of emission lines observ…
The longest wavelength of light that can be used for the ionisation of lithium ion (Li²⁺) is x × 10 - 8   m .…
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