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Electron Configuration NTG Electron Configuration The ____________________________ of electrons in atoms. Element has a different # of electrons, so the electron configuration is _______________________ for each element. Electrons tend to make arrangements to obtain the ___________________ possible energy (Ground State). Principal Quantum Number The main energy level of an atom. Equal to the period #. 1s _____ 2s _____ 2p _____ _____ _____ 3s _____ 3p _____ _____ _____ 3d ___ ___ ____ ____ ____ The principle quantum numbers are _____, ______, and ______. Sublevels Sublevel # Orbitals # Electrons SC3b. Use the orbital configuration of neutral atoms to EXPLAIN its effect on atom’s chemical properties. Electron Configuration NTG Electron Configuration Notation The __________________quantum number is equal to the element’s period ________. The sublevel is ____, ____, ____, or _____. The electrons are written as _________________________ above the sublevel letter. Question: Each atomic orbital is described by its principle quantum number and the letter of the ________________________________________. Electron Configuration Notation Practice Element # of e-‘s Electron Configuration Notation Hydrogen Helium Lithium Beryllium Boron Carbon Nitrongen Oxygen Fluorine Neon SC3b. Use the orbital configuration of neutral atoms to EXPLAIN its effect on atom’s chemical properties.