List of top Chemistry Questions on Quantum Mechanical Model of Atom asked in NEET (UG)

The quantum numbers of four electrons are given below:
I. \( n = 4; l = 2; m_l = -2; s = -\frac{1}{2} \)
II. \( n = 3; l = 2; m_l = 1; s = +\frac{1}{2} \)
III. \( n = 4; l = 1; m_l = 0; s = +\frac{1}{2} \)
IV. \( n = 3; l = 1; m_l = -1; s = +\frac{1}{2} \)
The correct decreasing order of energy of these electrons is:

The number of angular nodes and radial nodes in $3s$ orbital are

Orbital having 3 angular nodes and 3 total nodes is :-

Two electrons in the same atomic orbital can be distinguished by their