Transcription of Chapter 2: Atomic Structure and Chemical Bonding
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Chapter 2: Atomic Structure and Chemical Bonding
1 Chapter 21 Chapter 2: Atomic Structure and Chemical Bonding Materials Molecules Atoms Atoms = protons (p) + neutrons (n) + electrons (e) Protons and neutrons are made of quarks Quantitative measurements need units: metricor (SystemeInternational) or mks(meter-kilogram-second) unitsmeter (m) for lengthcubic meter (m3) for volumekilogram (kg) for massKelvin (K) for temperaturesecond (s) for timemole (mol) for amount of substanceChapter 22 Typical parameters.
Chapter 2 31 Benzene (C 6H 6) important for some polymeric materials Chapter 2 32 2.7 Metallic Bonding • Consider Na metal: what holds it together? • In solid state metal atoms are packed in a systematic pattern or crystal structure • The valence electrons are weakly bonded to the positive-ion cores and can readily move as “free ...
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