Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Flame Test Lab Name __________________ 9-11 PS2B Given the number and arrangement of electrons in an outermost shell of an atom, predict the chemical properties of the element. EALR 1.1 Properties: Understand how properties are used to identify, describe, and categorize substances, materials, and objects and how characteristics are used to categorize living things. GLE 1.1.1 Understand the atomic nature of matter, how it relates to physical and chemical properties and serves as the basis for the structure and use of the periodic table. Identify an unknown substance using the substance’s physical and chemical properties. Problem: What is the unknown ion? Observations and Data Metallic Ion Sodium, Na+ Flame Color Potassium, K+ Lithium, Li+ Calcium, Ca2+ Strontium, Sr2+ Barium, Ba2+ Copper, Cu2+ Unknown Conclusion and Questions 1. What inaccuracies may be involved in using flame tests for identification purposes? 2. Which pairs of ions produce similar colors in the flame tests? 3. Explain how the colors observed in the flame tests are produced.