Explanation

 

What is an atomic bomb?

When an atom - such as of plutonium or uranium – strikes a neutron, the atomic nucleus is split into two fragments (nuclear fission) and neutrons split off from the nucleus, releasing enormous energy. The atomic bomb is a means of using this energy as a weapon; weapons based on the above mechanism are called “nuclear weapons.”

When an atomic bomb explodes, it creates a fireball and emits enormous heat rays and radiation. The heated air expands at a tremendous pace, producing a violent blast. The complex interrelations of heat rays, radiation and blast amplify the damage.

A-bomb dropped on Nagasaki
Material used Plutonium
Explosive force Equivalent to 21,000 tons of TNT
Size Approx.3.25 m in length, approx.1.52 m in diameter
Weight Approx. 4.5 tons

Nicknamed “Fatman” because of its shape and size.