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# Science and Technology/Engineering Curriculum Framework - Spring 2001

Additional Ideas for Developing Investigations and Learning Experiences and Suggested Extensions to Learning in Technology/Engineering are in Appendix III.

### Periodicity

Broad Concept: Periodicity of physical and chemical properties relates to atomic structure and led to the development of the periodic table. The periodic table displays the elements in order of increasing atomic number.

 3.1 Explain the relationship of an element's position on the periodic table to its atomic number and mass. * 3.2 Use the periodic table to identify metals, nonmetals, metalloids, families (groups), periods, valence electrons, and reactivity with other elements in the table. 3.3 Relate the position of an element on the periodic table to its electron configuration. 3.4 Identify trends on the periodic table (ionization energy, electronegativity, electron affinity, and relative size of atoms and ions).

Boldface type indicates core standards for full-year courses. An asterisk (*) indicates core standards for integrated courses.