Units of Measurement And their Uses Dr. C.’s Pre-AP Chemistry Fall 2015 Lesson Objectives: Distinguish between a quantity, a unit, and a measurement standard Name the SI…

Chapter 1 Elements and Measurements Chemistry and the Elements Elements and the Periodic Table Periods: 7 horizontal rows. Groups: 18 vertical columns. International standard:…

Elements and Measurements Periods: 7 horizontal rows. Groups: 18 vertical columns. International standard: 1-18 US system: 1A-8A, 1B-8B Metals: Left side of the zigzag line…

SIGNIFICANT FIGURES ACCURACY VS. PRECISION In labs, we are concerned by how “correct” our measurements are They can be accurate and precise Accurate: How close a measured…

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