Chemistry - Ch. 5 Review

Do Ch. 5 review on p. 129-130 and Ch. 5 Standardized Test prep on p. 131.

1. Be able to label a diagram of the atom (nucleus, proton, neutron, electron, electron shell)

2. Know the charges and relative masses of a proton, neutron and electron.

3. From atomic number and atomic mass, be able to determine the number of protons, neutrons and electrons in a neutral atom.

4. Know the definition of “isotope” and how to write shorthand notations for isotopes using the chemical symbol-mass number and the chemical symbol with the mass number to the left as a superscript and the atomic number to the left as a subscript (see p. 117).

5. Given the percent abundance of isotopes and their atomic masses, calculate the weighted average atomic mass of the element (see #17, p. 121)

6. Explain the organization of the periodic table.

7. Be able to label these things on a periodic table – groups, periods, metals, nonmetals, metalloids, representative elements, transition elements, alkali metals, alkaline earth metals, halogens and noble gases.

8. Be able to list properties of metals and nonmetals.

9. Be able to discuss Millikan's Oil Drop experiment and how it led to values for the charge and mass of an electron.

10. Be able to discuss Rutherford's gold foil experiment and how it led him away from the "plum pudding model" of the atom and toward the "nuclear" model of an atom which is mostly space with a small, dense, positive nucleus.