An electron bubble is the empty space created around a free electron in a cryogenic gas or liquid, such as neon or helium. They are typically very small, about 2 nm in diameter at atmospheric pressure.
Read more about Electron Bubble: Electron Bubbles in Helium, Electron Repulsion From The Surface of Helium, The 2S Electron Bubble, Footnotes
Famous quotes containing the word bubble:
“Each swung in danger on its slender twig,
A bubble on a pipestem, growing big.”
—Robert Frost (1874–1963)