Most of that 22.4 L of space is empty space, not atoms. The 22.4L/mol at STP is the volume the gas takes up, including all the empty space in between them . It is not the volume of the atoms themselves. Compared to the 22.4L, the atoms themselves take up a very small amount of the volume.
Traditional_Cat_60 t1_jd0qpxy wrote
Reply to comment by Humble_Cook212 in How much space does it require to accommodate 1 hydrogen atom? by Alvsvar
Most of that 22.4 L of space is empty space, not atoms. The 22.4L/mol at STP is the volume the gas takes up, including all the empty space in between them . It is not the volume of the atoms themselves. Compared to the 22.4L, the atoms themselves take up a very small amount of the volume.