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Che 111 Chapter 2 (Hill) Highlights

Che 111 Chapter 2 (Hill) Highlights. Dr. McGoldrick. Dalton’s Atomic Theory 1803. All matter made of atoms Atoms are indivisible Atoms of same element are the same Atoms of different elements are different A chem rxn is a “reshuffling” of atomic combinations. Chemical Laws.

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Che 111 Chapter 2 (Hill) Highlights

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  1. Che 111 Chapter 2 (Hill) Highlights Dr. McGoldrick

  2. Dalton’s Atomic Theory 1803 • All matter made of atoms • Atoms are indivisible • Atoms of same element are the same • Atoms of different elements are different • A chem rxn is a “reshuffling” of atomic combinations

  3. Chemical Laws • Conservation • Definite Composition • Multiple Proportions

  4. Atoms are Divisible • Radioactivity & subatomic particles • Fundamental Particles:electron and proton • Nuclear atom (~1902) • Neutron (1942)

  5. Atomic Structure • Atomic number • Relative atomic mass or at. wt. (amu) • mass number • Isotopes notation abundancy

  6. Periodic Chart • Mendeleev & periodicity (1869) • Metals, nonmetals, metalloids • A elements • B elements main transition; inner transition • Groups

  7. Types of Compounds • Molecular (nonmetal & nonmetal) • Ionic (metal & nonmetal) molecular formulasstructural formulas(functional groups and models) metal cationsnonmetal anionscrystal lattice/ formula units

  8. Ions • The inert gas model • Monoatomic ions-use chart to predict charge • Polyatomic ions (page 54)- use handout and memorize!

  9. Formulas & NamesIonic Compounds • Binary Ionics-name metal; name nonmetal with -ide ending • Ternary Ionicsmemorize the polyatomics & use them! • Hydrates (re: lab)

  10. Formulas & NamesMolecular Compounds • Binaries only • Use prefixes

  11. Acids and Bases • Arrhenius Definition • ExamplesSkip section 2.9

  12. CaSO4 ____________ (NH4)2S ___________ Boron Trifluoride _____________ Test ExampleProvide which ever is missing FORMULA NAME

  13. Chapter 2 homework

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