Lacey_Che131_S2012_Lect-21

Lacey_Che131_S2012_Lect-21 - Electrons in Atoms and...

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Electrons in Atoms and periodic properties Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 1 Lec-22: Light, Spectra, and the Bohr Model of Hydrogen Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 2 Atomic Structure The electrons are situated at comparatively large distances ompared to nuclear dimensions) (compared to nuclear dimensions) around the nucleus The fundamental structural blocks of substances are the atoms Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 3 4 Lungs Brain Roy A. Lacey, Stony Brook University; Che 131, Springl 2012
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Atomic Structure adiation plays an important role in the Radiation plays an important role in the study of atomic structure -> atoms absorb & emit radiation The electromagnetic spectrum is a continuous Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 5 range of radiant energy. Waves Waves are crucial for characterizing lectromagnetic radiation A wave can be described as a disturbance that travels through a medium from one location to another location. Electromagnetic radiation Here Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 6 Waves Longitudinal ave Wave Water ave Wave Transverse Wave Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 7 Waves ontrivial amounts of energy can Nontrivial amounts of energy can be transported by waves with devastating effects =10m in hr Shoaling f = 10 min – 2hr λ ~ 500 km v ~ (g*d) When waves enter shallow water they slow down. The energy flux must remain constant and the reduction in group (transport) speed is compensated by an increase Roy A. Lacey, Stony Brook University; Che 131, Springl 2012 8 in wave height (and thus wave energy density).
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Waves ` Wavelength ( λ ) is e distance from the distance from crest to crest or trough to trough n a wave 1444 4244443 on a wave.
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This note was uploaded on 03/29/2012 for the course CHE 131 taught by Professor Kerber during the Spring '08 term at SUNY Stony Brook.

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Lacey_Che131_S2012_Lect-21 - Electrons in Atoms and...

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