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Topic Four: Classifying Elements Elements. Pure substances that cannot be separated into different substances by ordinary processes Are the building blocks of matter 112 elements known today Examples: carbon gold calcium. Symbols of Elements.
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Topic Four: Classifying ElementsElements • Pure substances that cannot be separated into different substances by ordinary processes • Are the building blocks of matter • 112 elements known today Examples: carbon gold calcium
Symbols of Elements • Use 1 or 2 letter abbreviations • Capitalize the first letter only Examples: C carbon Co cobalt N nitrogen Ca calcium F fluorine Br bromine O oxygen Mg magnesium LecturePLUS Timberlake
Symbols from Latin Names Element Symbol Latin name Copper Cu cuprum Gold Au aurum Lead Pb plumbum Mercury Hg hydrargyrum Potassium K kalium Silver Ag argentum Sodium Na natrium Tin Sn stannum LecturePLUS Timberlake
Learning Check Select the correct symbol for each: A. Calcium 1) C 2) Ca 3) CA B. Sulfur 1) S 2) Sl 3) Su C. Iron 1) Ir 2) FE 3) Fe LecturePLUS Timberlake
Solution Select the correct name for each: A. N 2) nitrogen B. P 3) phosphorus C. Ag 1) silver LecturePLUS Timberlake