Atom

There was only an atom of daylight left as the sun set behind the horizon.

He found an atom of humor in the otherwise serious situation.

He put an atom of effort into his homework and got a passing grade.

She detected an atom of jealousy in her friend's tone.

The company made an atom of profit despite a difficult year.

The recipe called for just an atom of salt to enhance the flavors.

He couldn't find an atom of motivation to start his project.

The atom of doubt in her mind was growing stronger.

The atom of a mosquito can cause a lot of irritation.

The politician dismissed the opposition's argument as an atom of truth.