However, the extent to which valence electrons in molecular crystals contribute to magnetism remains unclear, leaving their quantum properties insufficiently explored.

It is not possible to locate the exact position of an electron, but the electron cloud shows the region where an electron is most likely to be. When the plastic strip is rubbed on the skin, electrons ...

We find that it is the 4s orbital electrons that are ionised first before the 3d orbitals. We have to conclude that, ironically for the d-block elements, the 4s orbitals are in fact higher in energy ...

The attraction by the chlorine atoms is stronger than the attraction by the calcium atom. Two electrons are transferred from the calcium atom, one to each chlorine atom. Calcium becomes a +2 ion and ...