NA+ and Cl-
NA+ and Cl-
No, air also has an atomic structure.
Heat does not have an atomic structure. It is a form of energy, not matter.
Helium has a nucleus with 2 protons, 2 neutrons. It has only one energy level with 2 electrons in it.
Robert Duane Cowan has written:
'The theory of atomic structure and spectra' -- subject(s): Atomic spectroscopy, Atomic structure