The inaccuracies that may be involved in using flame tests for identification purposes is that there are certain ions that produce the same flame color and further identification must be made to identify the substance. 2. The pairs f ions that produce similar colors are CRACKER and Niacin, Son+2 and Zen+, and Ca+ and In+2. 3. A flame test is a procedure used to test qualitatively for the presence of certain metals in chemical compounds. When the compound to be studied is excited by heating it in a flame, the metal ions will begin to emit light.
Based on the emission spectrum of the element, the compound will turn the flame a characteristic color. 4. A. Quanta- a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents; an analogous discrete amount of any other physical quantity, such as momentum or electric charge. B. Ground State- the lowest energy state of an atom or other particle. C. Excited State- a stationary state of higher energy than the lowest stationary state or ground state of a particle or system of particles. . A spectroscope is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. The variable measured is most often the light’s intensity but could also, for instance, be the popularization state. The independent variable is usually the wavelength of the light or a unit directly proportional to the photon energy, such as heavenlier or electron volts, which has a reciprocal relationship to wavelength. 6.
The absorption lines in stellar spectra can be used to determine the chemical composition of the star. Each element is responsible for a different set of absorption lines in the spectrum, at wavelengths which can be measured extremely accurately by laboratory experiments. Then, an absorption line at the given wavelength in a stellar spectrum shows that the element must be present. 7. Atoms can be made to emit electromagnetic emissions by exciting the electrons and then allowing them to drop to lower energy levels.