Electronic Structure Electrons:outside the nucleus,in orbitals. Electrons have wave properties. Electron density is the probability of finding the electron in a particular part of an orbital. 。 Orbitals are grouped into“shells,”at different distances from the nucleus. > Chapter 1 4Chapter 1 4 Electronic Structure • Electrons: outside the nucleus, in orbitals. • Electrons have wave properties. • Electron density is the probability of finding the electron in a particular part of an orbital. • Orbitals are grouped into “shells,” at different distances from the nucleus. =>