'Electrons' presentation slideshows

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Review: Depletion Region Recombination

Review: Depletion Region Recombination

Review: Depletion Region Recombination Flat Quasi-Fermi Level (QFL)  Requires rate limiting recombination is slow compared to thermal diffusion Assuming: k n ~k p = σ v , Flat QFL  We get for recombination in the bulk at position x, Note, Vapp < 0 here

By Audrey
(971 views)

Recap Observations inside Matter

Recap Observations inside Matter

Recap Observations inside Matter What is an electronic microscope ? How can small objects be seen with a microscope and with an electronic microscope ? How do you explain the X ray diffraction experiments on salt (NaCl) ? How do we know that electrons move as probability waves?

By Pat_Xavi
(354 views)

Radiation Safety and Operations

Radiation Safety and Operations

Radiation Safety and Operations. The University of Montana-Missoula. How most of us feel about radiation until we understand the principles of safe use:. Today’s Mixed Message.

By sherlock_clovis
(223 views)

Access to Science: Chemistry

Access to Science: Chemistry

Have a go at the element word search, use your periodic tables to help you!. Access to Science: Chemistry. Week 2 electronic configuration, basic and advanced. Are you ready to learn? Lab notebook out and a pen No food out, drinks away Phones on silent and in your bag

By johana
(366 views)

Section 6.2 Covalent Bonding and Molecular Compounds

Section 6.2 Covalent Bonding and Molecular Compounds

Section 6.2 Covalent Bonding and Molecular Compounds. Sharing is caring!. Chapter 6 Vocabulary. molecule (molecular compound) molecular formula bond energy electron-dot notation Lewis structure structural formula single bond resonance. Reading Guide. Section 2

By Lucy
(299 views)

Electron Configuration and Orbital Diagrams

Electron Configuration and Orbital Diagrams

Electron Configuration and Orbital Diagrams. More fun stuff!. Electron Configurations!!. Back to this from the other day: FIND IT!! It tells you what the electron configuration ends with…. What is this madness?. How to write electron configurations ! We find the number of electrons .

By elina
(269 views)

Chapter 7 “Ionic and Metallic Bonding”

Chapter 7 “Ionic and Metallic Bonding”

Chapter 7 “Ionic and Metallic Bonding”. Bostick Chemistry. Section 7.1 - Ions. OBJECTIVES: Determine the number of valence electrons in an atom of a representative element. Section 7.1 - Ions. OBJECTIVES:

By betty_james
(166 views)

Unit 2 – Electrons and Periodic Behavior Cartoon courtesy of NearingZero

Unit 2 – Electrons and Periodic Behavior Cartoon courtesy of NearingZero

Chapter 4: Arrangement of electrons in atoms. Unit 2 – Electrons and Periodic Behavior Cartoon courtesy of NearingZero.net. Cartoon courtesy of NearingZero.net. 4-1 Properties of Light. Electromagnetic radiation- is a form of energy that exhibits wavelike behavior as it travel through space.

By Anita
(267 views)

Photo Detectors in High Energy Physics

Photo Detectors in High Energy Physics

Photo Detectors in High Energy Physics. Dieter Renker. Outline. Various detectors will be presented that involve photo sensors. The problems will be pointed out and the realized solutions which have been found, will be described. Calorimeters: PMT, PIN diode, APD, G-APD

By adamdaniel
(218 views)

Methods and T ehni ques in Surface Science

Methods and T ehni ques in Surface Science

Methods and T ehni ques in Surface Science. Prof. Dumitru LUCA “Alexandru Ion Cuza” University, Iasi, Romania. UHV systems. Limit between HV and UHV: 10 -7 - 10 -8 mbar. Small leaks – crucial role in establishing the limit pressure.  = 3.2/ p (s) ( p – mbar )

By stu
(169 views)

Chapter 5

Chapter 5

Chapter 5. Chemical Bonds, Nomenclature, Lewis Structure and Molecular Shapes. 75%. % Ionic Character. 50%. 25%. Electronegativity difference. I. Chemical Bonds B. Ionic Bonds.

By keita
(396 views)

Fields and Waves

Fields and Waves

Fields and Waves. Lesson 3.4. ELECTROSTATICS - MATERIALS. CONDUCTORS and DIELECTRICS. Conductors. Dielectrics. High conductivities; s (for Copper) ~ 5.8x10 7 S/m. Low conductivities; s (for Rubber) ~ 1x10 -15 S/m or 1/ W -m. Semiconductors (mid s ’s).

By kioko
(325 views)

Diodes under Bias

Diodes under Bias

Diodes under Bias. Qualitatively the function of the diode under bias can be described best in terms of energy band levels. In the intrinsic case, the diffusion current is matched by a drift current in the opposite direction, which is driven by the contact potential.

By forbes
(333 views)

Preview

Preview

Standardized Test Preparation . Chapter 4. Preview. Multiple Choice Short Answer Extended Response. Multiple Choice. 1. Which of the following relationships is true? A. Higher-energy light has a higher frequency than lower-energy light does.

By ely
(396 views)

Atoms

Atoms

Atoms. Chapter 4. Section 1: “The Development of the Atomic Theory”. The atom is the smallest unit of all matter. Section 1: “The Development of the Atomic Theory”. Who: Democritis When: 4 th century B.C. What: Suggested that the universe was made of indivisible units.

By templeton
(217 views)

Lecture 5.1 Scanning Electron Microscopy (SEM)

Lecture 5.1 Scanning Electron Microscopy (SEM)

Lecture 5.1 Scanning Electron Microscopy (SEM). (SEM) and TEM. Scanning Electron Microscopy (SEM).

By dunne
(605 views)

Periodic Table Study Guide

Periodic Table Study Guide

Periodic Table Study Guide. How to Draw Lewis Dot Structures. 8 th Grade Science. Lewis Dot Structures. Find your element on the periodic table. Determine the number of valence electrons. This is how many electrons you will draw. Lewis Dot Structures.

By cameo
(439 views)

ARRT & Other DIGITAL Terms Defined

ARRT & Other DIGITAL Terms Defined

ARRT & Other DIGITAL Terms Defined. April 2009 Wk 9/10 RT 255. Display Workstations. Conventional film/screen radiography uses large multiviewer lightboxes. With early PACS, radiologists thought that they needed 4-6 monitors. Now, the number of monitors has dropped to an average of 2.

By tacey
(499 views)

Who Wants to Be a Millionaire?

Who Wants to Be a Millionaire?

Who Wants to Be a Millionaire?. YEAR 10 CHEMISTRY. $ 100 QUESTION. An atom of Sodium has how many electron shells? 1 2 3 4. $ 200 QUESTION. What is the atomic mass number of an element? The number of neutrons in the nucleus The mass of the neutrons and protons

By enye
(236 views)

IV. Chemical Bonding

IV. Chemical Bonding

IV. Chemical Bonding. Dots represent valence electrons. Everything else (inner shell electrons and nucleus) is called the Kernel and is represented by the symbol. Phosphorous has 5 valence electrons so we draw 5 dots around the symbol for phosphorous.

By manny
(943 views)

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