Atoms and Their Sizes

  • Exhibition Text

    • Atoms range in size from a few tenths of a nanometer to several nanometers across. More than 10 million hydrogen atoms would fit across the head of a pin. Atoms are the basic constituents of molecules, cells, humans, and planets. The human body contains about a billion billion billion (10^27) atoms.

      Show more

In This Section

Hydrogen Atom

Hydrogen Atom

If the Hayden Sphere is the size of a rhinovirus, then this model is the relative size of the hydrogen atom.

Water

Water

If the Hayden Sphere is the size of a rhinovirus, then the model hanging about you are the relative size of water.

Ammonia

Ammonia

If the Hayden Sphere is the size of a rhinovirus, then the model hanging about you are the relative size of ammonia.

Methane

Methane

If the Hayden Sphere is the size of a rhinovirus, then the model hanging about you are the relative size of methane.