CHEM 1201 Chapter : Chem1201 Chapter Review 2-murray
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Spring 2007 (know how to state these and illustrate their operation: law of conservation of mass, law of constant composition, law of multiple proportions. Experiments relative to atomic structure and atomic particles (know how to explain each experiment and what each demonstrated: the jj thomson cathode ray tube experiment, the milliken oil drop experiment, rutherford s experiment, fundamental laws of chemistry. Mass = (wt. of isotope 1) x (% of isotope 1) + (wt. of isotope 2) x (% of isotope 2) + Z z = atomic number (# of protons) A = mass number ( protons + neutrons) The modern periodic table is arranged according to increasing atomic number, and consists of vertical groups (or families) and horizontal periods. The elements in the table are separated into three categories: metals, nonmetals, and metalloids. Some of the groups have special names. (see table 2. 3) The metals are separated from the nonmetals by a stair step division line.
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