Atomic orbitals exist, sort of. The lobes, spheres, and donuts familiar to many chemists are like a map of where you might find electrons around a nucleus. The geometric patterns and motifs that atoms ...

Elements in group 1 and group 2 are metals. Atoms of group 1 elements have one electron in their outer shell, and atoms of group 2 elements have two electrons in their outer shell. Elements in groups ...

The chemical rearrangement of oligo-(phenylene-1,2-ethynylenes) as seen in the microscope image (top) and the stick diagram of the molecular structure. de Oteyza et al It’s one of the most basic ...

The Nobel Prize in Chemistry 2017 goes to Jacques Dubochet, Joachim Frank, and Richard Henderson "for developing cryo-electron microscopy for the high-resolution structure determination of ...

Elements in the same horizontal row are in the same period. The periods are numbered from top to bottom. The period number is the same as the number of occupied electron shells.