Asslamu alaikum
The main fuel of this bomb is uranium 235/238.Basically scientists uses uranium 238. Because in here gets more energ.
When we heet uranium 238 it will break down. And get more energ.
This Procedure continue running. And get huge heat and energ.This procedure is called Fission reaction.
Actually the uranium contsins on head of the capsule.
And when it fell down in a airplane or drone it heet a target point.
Before heet a target it started to do its mechanism. And do it properl.
In the second world war when fallen down down japal it occurs a huge destroyed.
This is final result of atom bomb.
In a short time I want to try explain the simple mechanism of atom bomb. If authority gives opportunity I will try to expalain mone and more my idea.