Quantization of energy lab report instructions: for this investigative phenomenon, you will need to determine the composition of the new star using a spectrometer. this will scientists determine the star's approximate age. you will complete part i and part ii trials of the experiment. record your observations and test measurements in the lab report below. you will submit your completed report. title: objective(s): hypothesis: make a prediction that describes the relationship between the composition of an unknown substance and its emission spectrum. for example, “if each element can be identified by its then the of an unknown star can be determined." procedure: access the virtual lab and complete part i and part ii trials of the experiment. because this lab is virtual, summarize the steps in which data were collected for the samples. in addition, list and explain your controlled variables, independent variable, and dependent variable for this lab. materials: quantization of energy virtual lab variables: remember, controlled variables are factors that remain the same throughout the experiment. an independent (test) variable changes so that the experimenter can see the effect on other variables. the dependent (outcome) variable will change in response to the test variable. controlled variables: independent variable: dependent variable: summary of steps: data: type the results of your tests in the data table below. the saved results of your measurements can also be found by selecting the data table button within the virtual lab. don't forget to record measurements with accuracy, precision, and appropriate significant figures. part i: flame tests solution element name color description known one known two known three known four known five known six unknown one unknown two part ii: spectrometry known elements spectrum line hydrogen helium sodium neon mercury 1 2 3 4 5 6 7 8 9 10 star composition line in star spectrum color wavelength 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 conclusion write a conclusion statement that addresses the following questions: • based on your data, which unknown elements make up this star? • do your data support or fails to support your hypothesis (include examples)? • how do you think the investigation can be explored further? post-lab reflection questions answer the reflection questions using what you have learned from the lesson and your experimental data. it will be to refer to your chemistry journal notes. answer questions in complete sentences. 1. in parts i and ii of the lab, what happened to the electrons of each element to produce the different colors of light? explain your answers using important terms from the lesson and information provided in the laboratory. 2. stars composed of heavier (more massive) elements are often slightly older than stars made predominantly from hydrogen and helium. based on your data, is the newly discovered star a younger star? explain your answer.