Question

Chemistry graduate student is very skilled at analyzing atomic emission spectra. The printout of her spectrum is printed in black and white. Therefore, she has to rely on comparing the widths and positions of spectral lines during analysis. Observe the various atomic emission spectra.

Which of the elements shown makes up the unknown spectrum?

A.
hydrogen


B.
helium


C.
sodium


D.
copper


E.
strontium


F.
All of the elements

Answer 1

The unknown spectrum may be strontium. Option E

The collection of lines or bands of light that strontium atoms emit or absorb as they transition between different energy levels is referred to as the strontium spectrum. Strontium's characteristic spectrum appearance can be used to identify the element in a variety of settings, including analytical chemistry and astronomy.

The two lines that are close together shows that they belong to electrons that are in the same energy level as in strontium