Is the electronic structure of an atom with two or more electrons solvable analytically?
70774
Why can't the Schrödinger equation be solved exactly for multi-electron atoms? Does some solution exist even in principle?
67978
Huge confusion with Fermions and Bosons and how they relate to total spin of atom
142916
Proton: 2 up, 1 down quark, Neutron: 2 down, 1 up, how can Neutron: proton + electron?
122166
Significance of $i$ in the Schrödinger equation
101338
why path of an electron in an orbit is uncertain?
101948
Capacity of an orbital to hold muons and electrons
51351
Where do symmetries in atomic orbitals come from?
58177
Why do lines in atomic spectra have thickness? (Bohr's Model)
79571
How can the nucleus of an atom be in an excited state?
22958
Is there such a thing as charge density in quantum mechanics?
92358
Can bosons that are composed of several fermions occupy the same state?
77742
Queries about rotational groups $\mathrm{SO}(3)$ and $\mathrm{SU}(2)$ in QM
20997
Can an electron jump to a higher energy level if the energy is insufficient or exceeds the $\Delta E$?
13443
Where are the inaccuracies in the Bohr model of the atom?
7032
Explain reflection laws at the atomic level
8760
Is the harmonic oscillator potential unique in having equally spaced discrete energy levels?
37399
The temperature of an electron