Question

In an atom why do electrons not fall into the nucleus due to force of attraction between them?​

Answer 1

Answer:

Quantum mechanics states that among all the possible energy levels an electron can sit in the presence of a nucleus, there is one, which has THE MINIMAL energy. This energy level is called the ground state. So, even if atoms are in a very very called environment, QM prohibits electrons from falling to the nucleus.

Answer 2

Answer:

Electrons do not fall into the nucleus because it has fixed or quantised energy levels and it will never fall into nucleus as it has minimum one orbit(energy levels) to exist.