At the right is a sketch showing one of the atoms in the diffuse, cool cloud of gas described in the previous question. Note that the atom has several energy levels that an electron could exist in. Using a dot to represent an electron, a straight arrow to represent the motion of the electron, and a squiggly arrow to represent the photon, sketch what you think would happen within this atom to cause the type of spectrum described in the previous question. Explain the reasoning behind why you drew the electron and arrows the way you did.
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