Can we remove or decrease spaces between atoms or molecules?

A chemist explains the physical properties of atoms and molecules, specifically addressing why it is impossible to completely remove the space between them. The article uses the analogy of packing spheres into a box to illustrate how natural forces like heat and pressure can rearrange but not eliminate atomic gaps.
Why it matters
Understanding atomic structure is fundamental to materials science and physics, influencing how we develop new substances and technologies.
Under usual, everyday conditions, carbon atoms exist as stacks of hexagonal sheets, but extreme pressure and heat rearrange them to form diamonds. Kateryna Kon/Science Photo Library via Getty Images Can we remove or decrease spaces between atoms or molecules? Published: August 3, 2026 8:29am EDT https://theconversation.com/can-we-remove-or-decrease-spaces-between-atoms-or-molecules-284163 https://theconversation.com/can-we-remove-or-decrease-spaces-between-atoms-or-molecules-284163 Link copied Share article Share article
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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com .
Can we remove or decrease spaces between atoms or molecules? – Paras, age 15, Uttarakhand, India
Have you ever seen a beautiful bunch of flowers packed tightly into a vase?
A florist has to wiggle and arrange them perfectly so there are no empty holes.
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