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Periodic Table 1. 2. 3. 4. 5. 6. periodic law valence electron group period main-group noble gas 7. alkali metal 8. halogen 9. alkaline earth metal 10. transition metal 11. semimetal 12. ductile 13. malleable 14. periodic trends I. Characteristics/ Properties A. defined: a quality or trait belonging and especially peculiar to an individual or thing a distinguishing trait or quality B. Properties of All Metals malleable - can be shaped or bent without breaking ductile - can be drawn out into wire or hammered into a thin sheet shiney, lustrous Good conductor of heat and electricity C. Properties of All Non-Metals Opposite of above Often gas or liquid If solid, chalky and brittle D. Properties of Semi-Metals Share properties of both above II. Terms: 1. periodic law the physical & chemical properties of the elements recur in a systematic manner ie. there is a pattern physical & chemical properties are periodic functions of their atomic number