CHMA10H3 Chapter Notes - Chapter 8: American Recovery And Reinvestment Act Of 2009, Grou, Lkal
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CHMA10H3 Full Course Notes
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Chapter 8 - periodic properties of the elements. Mendelev ordered elements by atomic mass, saw repeating patterns of properties. Made periodic law - when elements are arranged, certain sets of properties recur periodically posing signs- put elements with similar properties in same column, later arranged elements according to atomic number (moseley): better correlation with elemental properties. Electron configuration: quantum mechanical theory describes behaviour of electrons in atoms, electrons exist in orbital, description of the orbitals is called the electron. Configuration - ground state electron configuration of an atoms lists orbitals occupied by its electron from lowest to highest energy = lower energy arrangement. 8. 4 electron configurations, valence electrons and the periodic table www. notesolution. com. Electron configuration of atoms in their ground state: short hand way of writing electron: use the symbol of the previous noble gas and then write in everything else.
