atom

The fusion process creates energy by joining atoms together, while the fission process creates energy when atoms are split apart.

In research published on October 23 in Science, the team precisely measured the energy of electrons orbiting a radium atom that was chemically bound to a fluoride atom, forming radium monofluoride.

This signature appears as a slight imbalance in potassium isotopes -- atoms of the same element with different numbers of neutrons.

Typically, electrons are confined to atoms, which restricts their potential uses.

When the metal is deformed, dislocations twist and shift, nudging nearby atoms into preferred positions.