Atomically

atom;ic pronunciation: function: adjective date: 1678 1 a : of, relating to, or concerned with atoms lt;atomic physicsgt; b : nuclear 2 lt;atomic energygt;2 a : marked by acceptance of the theory of atomism b : atomistic 23 : minute4 of a chemical element : existing in the state of separate atoms— atom;i;cal;ly adverb