P03 - m s = spin up or down[i.e ↑ 1/2 ↓ 1/2 “Paulie...

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Chemical Bonding Determined by the Following: 1.) Outermost electrons or valence electrons - interactions with other valence electrons from other elements result in bonding 2.) Clouds of negative matter - either circular or polarized 3.) Electrons - negative 1 charge with little mass Nature of Electrons - Dual Nature 1.) Particle properties - Bohr-Rutherford Theory 2.) Wave properties - Debrolie 1924 - Solutions to wave equation (quantum mechanics) Quantum numbers: n , l , m l , m s n = primary or principle quantum number [i.e. n=1,2,3… ] l = shape of the orbitals [i.e. s (l=0); p (l=1); d (l=2); f (l=3) ] m l = angular momentum; number of energy states per sub-orbital
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Unformatted text preview: m s = spin up or down [i.e. ↑ 1/2, ↓ 1/2 ] “Paulie Exclusion Principle”- Only 1 electron per quantum number- No two electrons can occupy the same energy level, including spin i.e. electron configuration of Iron, Fe : 1s 2 2s 2 2p 6 3s 2 3p 6 3d 6 4s 2 Recurring Theme in Material Science- Properties are functions of chemical constituents and structure . Chemical constituents 1.) Nature and size of the atoms 2.) Density of the electron structure 3.) Chemical Reactivity 4.) Chemical Bonding Structure 1.) Atomic structure 2.) Microstructure 3.) Macrostructure...
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