Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications ...

The lanthanide elements’ 4f electron orbitals are notoriously shy and retiring, and they were long thought to be unwilling partners in chemical bonding. Now chemists have brought out a surprising ...

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 ...