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Structure and Properties of Atoms

Structure and Properties of Atoms - 12.1 12 Structure and...

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12.1 12. Structure and Properties of Atoms (text Ch 6) A. Wave-Particle Duality of Light Light travels as an electromagnetic wave with a wavelength ( λ ). The amplitude is the intensity (brightness) The number of cycles that pass a given point per unit time is the frequency ( υ ). One Hertz (Hz) is one cycle per second. The speed ( c ) at which light moves through space is a constant, 2.998 × 10 8 m s 1 . Therefore, c = υλ Electromagnetic waves span a spectrum , but our eyes can only see around 400 – 700 nm. White light from the sun consists of all wavelengths between this range (and more).
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