1H.Drag the correct numberof electrons to the atommodel to represent aneutral atom.1.008HydrogenElectronHow many energy levels in tiselement?What period on the PT is theelement found?How many valence electronsdoes this element have?aker notesSign oacerDII&$%3D79.4tyfgh.. ..* 00

The given element has 3 energy levels.

Drag the correct number of electrons to the atom model to represent a neutral atom 1. Hyd Electron How many energy levels in element? What period on the PT is the element found? How many valence electrons does this element have?

Drag the correct number of electrons to the atom model to represent a neutral atom 1. Hyd Electron How many energy levels in element? What period on the PT is the element found? How many valence electrons does this element have?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter10: Atomic Physics

Section: Chapter Questions

Problem 15P

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A Alo 35 Ga0.65As/G.AS/Alo 35Gao.65AS pn" DH LED made of very high quality semiconductors has a radiative lifetime of t,=9 ns and nonradiative of tn -96 ns. At 300 K the LED is biased with a voltage V=2 V and the injected current at the biased voltage is I= 66 m4. Calculate the number of photons extracted from the LED that are normally incident to air from the GaAs active region. O a. 3.584e17 s-1 O b. 5.300e16 s-1 O c. 6.224e15 s-1 O d. 4.904e19 s-1 O e. 4.904e21 s-1
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Ob.4.522e-6 A Oc 2.720e-5 A O d. 1.071e-4 A O e. 9.010e-6 A A Alo.35Gao.65As/Ga.As/Alo.35GA0.65As pn" DH LED made of very high quality semiconductors has a radiative lifetime of t,=9 ns and nonradiative of Tr-96 ns. At 300 K the LED is biased with a voltage V= 2 V and the injected current at the biased voltage is I= 66 mA. Calculate the number of photons extracted from the LED that are normally incident to air from the GaAs active region. O a. 3.584e17 s-1 O b. 5.300e16 s-1 O c. 6.224e15 s-1 O d. 4.904e19 s-1 O e. 4.904e21 s-1 You are asked by your supervisor in a company to design a Alo.„Ga0.6As/GaAs/Alo Ga0.6As pn" DH surface emitting LED to be operated at 300 K emitting in air, given the following design parameters and information: 1. The semiconductors from which you will fabricate the LED is totally defect free.
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