The word(s) "atom's" appears 6 time(s) in 6 verse(s) in Quran in Saheeh International translation.

(1) Indeed, Allah does not do injustice, [even] as much as an atom's weight; while if there is a good deed, He multiplies it and gives from Himself a great reward.

(2) And, [O Muhammad], you are not [engaged] in any matter or recite any of the Qur'an and you [people] do not do any deed except that We are witness over you when you are involved in it. And not absent from your Lord is any [part] of an atom's weight within the earth or within the heaven or [anything] smaller than that or greater but that it is in a clear register.

(3) But those who disbelieve say, "The Hour will not come to us." Say, "Yes, by my Lord, it will surely come to you. [Allah is] the Knower of the unseen." Not absent from Him is an atom's weight within the heavens or within the earth or [what is] smaller than that or greater, except that it is in a clear register -

(4) Say, [O Muhammad], "Invoke those you claim [as deities] besides Allah." They do not possess an atom's weight [of ability] in the heavens or on the earth, and they do not have therein any partnership [with Him], nor is there for Him from among them any assistant.

(5) So whoever does an atom's weight of good will see it,

(6) And whoever does an atom's weight of evil will see it.