Question: Whats an atom made of?

Marina De Vos answered on 11 Mar 2013:

Atoms being made up of combinations of protons, electrons and usually, but not always, some neutrons. Protons and neutrons are themselves composed on quarks, the smallest components (found so far).
A detailed description can be found on: http://education.jlab.org/qa/atomicstructure_01.html