Atomic Energy Levels: Discrete vs Continuous

[crazy777]

Why in atom, ther r discrete energy level & not continous?
and energy emitted, from atom is in quata only?please give me exat answer or a related websites.
thanx in advance

 

[Civilized]

Exact answer: because the eigenvalue spectrum of the Hamiltonian for a Hydrogen-like atom is discrete. To understand this you need to learn basic quantum mechanics. Here is a summary of the exact solution to the hydrogen atom:

http://en.wikipedia.org/wiki/Hydrogen-like_atom