just how
big?
Hydrogen atom vs DNA double helix
The helix diameter of DNA double helix is about 18.9 times the characteristic size of Hydrogen atom.
Comparing
Characteristic size
Characteristic size
Log view
Characteristic scale
ENLARGED ×13.5
01
Hydrogen atom
105.8 pm
Characteristic size
02
DNA double helix
2 nm
Helix diameter
Inset ×13.5
Hydrogen atom is too small to see clearly at this scale. The ring marks its position; only the inset is enlarged.