List of top Chemistry Questions on Quantum Mechanical Model of Atom asked in COMEDK UGET

The number of electrons with azimuthal quantum numbers \( l = 1 \) and \( l = 2 \) for Cr in the ground state electronic configurations are respectively. [Given: Cr (Z = 24)]
The electronic configuration of the element with atomic number 78 is :

What are the Principal & Azimuthal quantum number values of the valence electrons in tripositive Lutetium?

A proton having mass equal to \(1.66 \times 10^{-27}\) kg is accelerated to one tenth of the velocity of light. If its velocity can be measured to an accuracy of \(\pm 2%\), what would be the uncertainty in its position?
The energy of electron in the nth orbit of hydrogen atom is expressed as $ \sqrt{3}cm $ . The shortest and longest wavelength of Lyman series will be :