Were Hiroshima and Nagasaki hit with napalm and mustard gas instead of atomic bombs?

 See https://sashalatypova.substack.com/p/how-to-fake-the-atomic-bombs

https://mpalmer.heresy.is/webnotes/HR/

The detonation of the nuclear bomb above Hiroshima marks the beginning of the ‘atomic age.’ Isn’t this an incontrovertible historic fact? Most people probably would say so. Yet, there were those who refused to believe it, at least in the beginning; and among them were leading nuclear physicists, including Werner Heisenberg. In time, however, they and the world at large were persuaded that the story was true. Why doubt it?