SAT Subject Test Chemistry
PART 2
REVIEW OF MAJOR TOPICS
CHAPTER 2
Atomic Structure and the Periodic Table of the Elements
Chapter Summary
The following terms summarize all the concepts and ideas that were introduced in this chapter. You should be able to explain their meaning and how you would use them in chemistry. They appear in boldface type in this chapter to draw your attention to them. The boldface type also makes it easier for you to look them up if you need to. You could also use the search or “Google” action on your computer to get a quick and expanded explanation of these terms, laws, and formulas.
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alpha particle |
half-life |
oxidation number |
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atomic mass |
Hund’s Rule |
Pauli Exclusion Principle |
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atomic number |
inert atoms |
periodic law |
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atomic radii |
ionic radii |
period or row |
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Aufbau Principle |
ionization energy |
phosphorescence |
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beta particle |
isotopes |
quantum numbers |
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Bohr model |
Lewis structure |
quantum theory |
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covalent radius |
Mendeleev |
radon |
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Dalton’s atomic theory |
metalloids |
s, p, d, f orbitals |
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electron |
Moseley |
transmutation |
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electronegativity |
neutron |
transition elements |
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gamma ray |
nuclear fission |
uncertainty principle |
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Geiger counter |
nuclear fusion |
valence electrons |
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group or family |
nucleus |
wave-mechanical model |
Internet Resources
Online content that reinforces the major concepts discussed in this chapter can be found at the following Internet addresses if they are still available. Some may have been changed or deleted.
Emission Spectroscopy
http://phys.educ.ksu.edu/vqm/html/emission.html
This site offers interactive computer visualizations of the quantum effects of emission spectra for a variety of substances.
Interactive Periodic Table
http://www.webelements.com
This is an interactive online periodic table available on the Web.
www.ptable.com/
This site shows properties, orbitals, and isotopes in chart form.
Radioactive Dating
http://chemistry.about.com/od/workedchemistryproblems/a/c14dating.htm
This Web page offers a tutorial on radioactive dating using carbon-14.
