![]() The electron transitions which produced lines in the visible spectrum involved atoms rather than ions. Because the electron is now at a higher and more energetically unstable level, it falls back down to the original level, but not necessarily in one transition. When heated, the electrons gain energy and can be excited into any of the empty higher-energy orbitals-7s, 6p, 4d, or any other, depending on the amount of energy a particular electron happens to absorb from the flame. For example, a sodium ion in an unexcited state has the electron configuration 1s 22s 22p 6. The flame test is used to visually identify an unknown metal or metalloid ion by the color the salt imparts to the flame of a bunsen burner. This will give off a color showing what elements are present in the compound. You dip a metal wire into a solution and put it over the hottest part of the flame. Flame colors are produced from the movement of the electrons in the metal ions present in the compounds. Flame tests are used to identify the presence of a realatively small number of metal ions. That means that each different metal will have a different pattern of spectral lines, and so a different flame color. The exact sizes of the possible jumps in energy terms vary from one metal to another. ![]() (right): Submicroscopic view of how electrons move between different energy levels in Na + ion topic lab answers Flame Test And Atomic Spectra Answer Key Lab Flame Tests 50webs April 14th, 2019. ![]() \): (left): Na+ ion emits yellow flame when an electron gets excited and drops back to its ground state. spectra to determine the composition of stars.
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