Obtaining a solution to the many-electron Schrödinger equation stands as one of the grand challenges in chemistry and physics. Highly accurate solutions are achievable for relatively small systems ...

We know that matter is made up of particles called atoms and that an element ... the same electronic structure as a noble gas i.e., have a full outer shell. For example an element in group 2 ...

Partisans are clashing over which elements belong in group 3, where helium should go ... scientists could now see that it was electronic structure that largely dictated elements’ properties ...