Strong’s Greek
G823 — atomos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἄτομος
atomos — pronounced at'-om-os
from 1 (as a negative particle) and the base of 5114; uncut, i.e. (by implication) indivisible (an "atom" of time):-- moment. see GREEK for 1 see GREEK for 5114
1 occurrence in the KJV.
1 Corinthians 15:52
In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.