An Electron in an Atom Drops from an Energy Level

question 15

Multiple Choice

An electron in an atom drops from an energy level at -1.1 * 10^-18 J to an energy level at -2.4 * 10^-18 J. The wave associated with the emitted photon has a frequency of:

• A) 2.0* 10¹⁷ Hz
• B) 2.0 * 10¹⁵ Hz
• C) 2.0 *10¹³ Hz
• D) 2.0 * 10¹¹ Hz
• E) 2.0 * 10⁹ Hz

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