Question

Explain the atomic structure

Answer 1

Of what?

Answer 2

Without further elaboration, it is difficult to know what you are seeking. I searched Google under the key words "<I>atomic structure</I>" to get these possible sources:

http://www.chemistry24.com/college_chemistry/atomic-structure-and-electron-configuration.html
http://web.jjay.cuny.edu/~acarpi/NSC/3-atoms.htm
http://www.chem4kids.com/files/atom_structure.html
http://www.shodor.org/unchem/basic/atom/index.html
http://www.terrific-scientific.co.uk/Pages/AtomicStructure/atomic_structure1.htm

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope thjis helps. If not, repost your question in more specific terms. Thanks for asking.