Question

name_ flame test lab the electrons in an atom occupy different energy levels, as you know. when all of the electrons are at the lowest - possible energy level they are said to be in the ground state. electrons do not always stay in the ground state. sometimes they can be promoted to a higher - energy electron shell. this can happen in two ways. first, the electron can absorb a photon of just the right amount of energy to move it from one quantum shell to another. second, when atoms are heated or energized with electricity their electrons can gain energy. this promotes them to the higher - energy shell. when an electron is in a higher - energy shell it is said to be in an excited state. electrons in excited states do not usually stay in them for very long. when electrons lose their energy they do so by emitting a photon of light. purpose to observe the characteristic colors produced by certain metallic ions when vaporized in a flame. materials bunsen burner nichrome loop chloride salts of different metals procedure 1. dip the nichrome loop into distilled water. 2. then dip the loop into the container with chloride salt 3. then place the loop in the bunsen burner flame until the substance is consumed. 4. record the color of the flame. 5. repeat steps 1 - 4 for each of the remaining salt solutions 6. complete the data table below. identify the cation of each solution. data table solution cation flame test observations lithium chloride licl li+ sodium chloride nacl na+ potassium chloride kcl k+ calcium chloride cacl2 ca2+ strontium chloride srcl2 sr2+ barium chloride bacl2 ba2+ iron chloride fecl2 fe2+ copper chloride cucl2 cu2+ tin chloride sncl2 sn2+ manganese chloride mncl2 mn2+

Explanation:

The lab involves observing colors produced by metallic ions in a flame, which is a common experiment in chemistry to identify cations based on their characteristic emission spectra when excited.

Answer:

This is an experiment to identify cations of different chloride - salt solutions through flame tests. The cations are Li⁺, Na⁺, K⁺, Ca²⁺, Sr²⁺, Ba²⁺, Fe²⁺, Cu²⁺, Sn²⁺, Mn²⁺ as listed in the data table.