Question

question 5.1.10 an element in an electrical discharge produced this bright line spectra. use figure 5.1.5 to identify the element

Explanation:

Step1: Observe the bright - line spectra

Compare the given bright - line spectra with the known spectra of elements.

Step2: Match the lines

Match the position of the bright lines in the spectra with the characteristic wavelengths of the elements in the options. Strontium (Sr) has a characteristic bright - line spectrum that can be identified by its specific set of wavelengths.

Answer:

Sr