After an atom in its ground state absorbs energy, it exists in an excited state
Chapter 8, Problem 8.43(choose chapter or problem)
After an atom in its ground state absorbs energy, it exists in an excited state. Spectral lines are produced when the atom returns to its ground state. The yellow-orange line in the sodium spectrum, for example, is produced by the emission of energy when excited sodium atoms return to their ground state. Write the electron configuration and the orbital diagram of the first excited state of sodium. (Hint: The outermost electron is excited.)
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