JEE Advance - Chemistry (1993 - No. 4)

Wave functions of electrons in atoms and molecules are called orbitals. An orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The square of the orbital's magnitude |ψ|² represents the probability density of finding an electron at a particular point in space.