No physicist has ever "seen" an electron. Yet, all physicists believe in the existence of electrons. An intelligent but superstitious man advances this analogy to argue that 'ghosts' exist even though no one has 'seen' one. How will you refuse his argument ?

Explanation

`to` By different experiments by scientists, atomic models are represented.
`to `Existence of electron in atom is proved.
`to` Some other experiments also proved directly or indirectly about availability of negative charge in atom.
`to` But, no scientific experiment has proved about existence of .Ghots..