Memorize these element names & symbols: Gases: H hydrogen He helium Ne neon N nitrogen O oxygen F fluorine Cl chlorine Ar argon Liquids: Hg mercury Br.
Electron Arrangements Electron Configurations. Learning Objectives Express the arrangement of electrons in atoms using electron configurations Electron.
Atomic Structure. Elements Atoms Components of an Atom Atomic Number Periodic Table of Elements Electrons Electron Orbits.
