Question

which is the most powerful and most harmful atom bomb in the world​

Answer 1

Answer:

Deployed on Strategic Air Command bombers, the B53, with a yield of 9 megatons, was the most powerful weapon in the U.S. nuclear arsenal after the last B41 nuclear bombs were retired in 1976.

Blast yield: Y1: 9 megatons Y2: Unknown

Produced: 1961–1965

Filling: Fission: 100%