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ATOMIC STRUCTURE
Question #23836
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Question
What is the energy of a 400 nm photon?
A. 4.969 × 10⁻¹⁹ J
B. 4.869 × 10⁻¹⁹ J
C. 4.769 × 10⁻¹⁹ J
D. 4.669 × 10⁻¹⁹ J
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