Question

Compound tested Ion responsible for color Color to naked eye Characteristic line colors viewed with spectroscope 2 3 4 5 6 7 Lithium chloride Sodium chloride Potassium chloride Strontium chloride Calcium chloride Copper(II) chloride Unknown Part E: Qualitative heat measure Observed effects of light source Energy Source Ultraviolet lamp Incandescent lamp Heat lamp Hot Plate (IR) ATOMS AND SPECTRA QUESTIONS: 1. What is line spectra and explain why it is important to chemical analysis? 2. What do the distinct lines in a line spectra reveal about atoms? Why does each element exhibit a line spectra instead of a continuous spectrum? 3. What form of electromagnetic radiation has energy slightly higher than that of visible light? 4. What form of electromagnetic radiation has energy slightly lower than that of visible light?

Answer 1

ATOM AND SPECTRA QUESTION Line sbectoum - gt spectrum - It is a dark or bright line I an uniform and continuous spectrum that results due to emission or absorption of light in a narrow frequency range Line spectrum are important nt to identify atoms and molecules. Each element produces a unique set of spectral llues. Speetool the represent different lines of spectrum Shades of ie light that that can be as can be emitted emitte election of a ground state that pumps to excited state. when election makes transition from high to lower ground it eleleases energy packet that corresponds to a line in the spectrum there is nothing between each line so spectrum i r discontinuous." visible Gamma rays Radio wares increasing Infrared Ultraviolet frequency Io Ultraviolet have energy slightly higher than visible eto eight. 9 Infrared (IR) has energy slightly lower CS than visible light.