Electron Configuration PDF
Document Details
Uploaded by Deleted User
Tags
Summary
This document explains electron configuration, including valence configuration and valence electrons. It also details rules and principles for writing electron configurations, like Hund's rule and the Aufbau principle.
Full Transcript
Electronic structure of atoms: Electron Configurat ion SUMMARY: Electron Configuration -is the arrangement of electrons in successive energy levels in the VALENCE CONFIGURATION the - configuration in the highest Energy Level. Ca - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² Ne - 1s² 2s² 2p⁶ VALENCE ELE...
Electronic structure of atoms: Electron Configurat ion SUMMARY: Electron Configuration -is the arrangement of electrons in successive energy levels in the VALENCE CONFIGURATION the - configuration in the highest Energy Level. Ca - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² Ne - 1s² 2s² 2p⁶ VALENCE ELECTRON -the electron(s) in the valence configuration. Na - 1s² 2s² 2p⁶ 3sᶥ P - 1s² 2s² 2p⁶ 3s² 3pᵌ RULES IN WRITING ELECTRON CONFIGURATION and ORBITAL DIAGRAM Orbital Diagram WOLFGANG PAULI Pauli’s Exclusion Principle Electrons occupying the same orbital and sublevel must have opposite spins. FRIEDRICH HUND Hund’s Rule of Electron pairing Multiplicity cannot occur until each orbital of a given subshell/sublevel contains one electron each or singly AUFBAU or Building-Up The Aufbau principle dictates that as Principle protons are added one by one to the nucleus to build up the elements, electrons are similarly added to the atomic orbitals. The order of filling up the atomic orbitals is from lowest energy to highest energy. Within the same principal quantum number, the order of energies of the atomic orbitals is……. s"
