JAMB Chemistry 2017 Paper

Concept:The $\mathrm{s}$-orbital is the region in an atom where there is the highest probability of finding an $\mathrm{s}$-electron.Explanation:An $\mathrm{s}$-orbital is symmetrical in all directions around the nucleus.Its electron cloud has no directional preference in space.The probability of finding the electron is the same at a given distance in every direction.This uniform three-dimensional distribution gives the $\mathrm{s}$-orbital the shape of a sphere.Elliptical, spiral, and circular shapes do not show this complete three-dimensional symmetry.Answer:D. spherical