How to use "atoms" in a sentence

Sentences

For one little moment it did not exist! It was only atoms travelling through space at the speed of light! A moment later, the atoms were once more gathered together in the shape of an ashtray!'

'It's possible because the atoms that make up objects are not close together like the bricks of a wall

There is no more Dandelo, only the atoms of a cat wandering somewhere in space.'