When an atom is broken down into parts, what happens to its identity?

Question

The atom is no longer recognizable.
The atom takes on a new average atomic mass.
The atom becomes a new type of matter.
The atom becomes a new element.
Is it the third one?

Answer 1

Well, I suppose if you put the protons in one box, electrons in a second, and neutrons in a third, it is several types of matter.