Here's why it's difficult to give a single answer:
* Different designs: Atomic bombs have various designs (implosion, gun-type) using different materials and configurations.
* Yield: The explosive yield of a bomb (how much energy it releases) is a major factor in its size. Smaller bombs have less explosive power and smaller dimensions.
* Specific components: The core, casing, explosive lenses (for implosion bombs), and other components contribute to the overall volume.
Instead of a specific volume, here are some general points:
* The core: The fissionable material itself (uranium or plutonium) is typically a relatively small sphere, only a few inches in diameter.
* Overall size: Depending on the yield, the entire bomb assembly can range in size from a small refrigerator to a minivan.
* Example: The "Little Boy" bomb dropped on Hiroshima was roughly 10 feet long and 28 inches in diameter.
Therefore, it's more helpful to think of atomic bomb sizes in terms of relative comparisons rather than a single volume figure.
