ELECTROMAGNETIC SPECTRUM. OUTER (VALENCE) ELECTRONS AND ATOMIC STRUCTURE U.V. and VISIBLEOuter Valence Electrons in Atoms & Molecules Give Rise to Atomic.

Slides:



Advertisements
Similar presentations
Chemistry Daily 10’s Week 5.
Advertisements

Now on to quantum numbers…
CHAPTER 6 ELECTRONIC STRUCTURE OF ATOMS. CHAPTER 6 TOPICS THE QUANTUM MECHANICAL MODEL OF THE ATOM USE THE MODEL IN CHAPTER 7 TO EXPLAIN THE PERIODIC.
Electrons And Light. Electromagnetic Radiation Energy that travels as a wave through space Wavelength –λ – distance between corresponding points on adjacent.
Quantum Physics. Black Body Radiation Intensity of blackbody radiation Classical Rayleigh-Jeans law for radiation emission Planck’s expression h =
Absorption / Emission of Photons and Conservation of Energy E f - E i = hvE i - E f = hv hv.
Lecture 2210/26/05. Moving between energy levels.
PH 103 Dr. Cecilia Vogel Lecture 20 Review Outline  Quantum numbers  H-atom  spectra  uncertainty  atoms and nuclei  The quantum model of the atom.
Chapter 71 Atomic Structure Chapter 7. 2 Electromagnetic Radiation -Visible light is a small portion of the electromagnetic spectrum.
Chapter 7 The Quantum- Mechanical Model of the Atom 2007, Prentice Hall Chemistry: A Molecular Approach, 1 st Ed. Nivaldo Tro Roy Kennedy Massachusetts.
Chapter 7: Completing the Model of the Atom
Quantum Mechanical Model
Quantum numbers.
Quantum Theory.
Arrangement of Electrons in Atoms
Electronic Structure of Atoms Chapter 6 BLB 12 th.
Lighten Up Quantum #’s e- Config’s Calcula- tions Wildcard Chapter 4 Jeopardy Chapter 4 Jeopardy Vital Vocab
Which scientist studied glowing metals and discovered that only certain wavelengths of light are emitted at each specific temperature & represented a.
General, Organic, and Biological Chemistry Copyright © 2010 Pearson Education, Inc.1 Chapter 3 Atoms and Elements 3.6 Electron Energy Levels.
© Copyright Pearson Prentice Hall Slide 1 of 26 Light and Atoms. 5.1.
Quantum Numbers Activity. Quantum Numbers Quantum numbers tell us properties of the atomic orbitals, and electrons, in an atom. Like giving each electron.
Arrangement of Electrons In Atoms
The Quantum Model of the Atom
Chemistry Chapter 4 Arrangement of Electrons in Atoms
MM 2006 AH Spectra Continuous spectrum Emission spectrum low pressure gas emitted light Prism or diffraction grating.
Quantum Chemistry Chapter 6. Copyright © Houghton Mifflin Company. All rights reserved.6 | 2 Electromagnetic Radiation.
Quantum Mechanical Model of the Atom Mathematical laws can identify the regions outside of the nucleus where electrons are most likely to be found. These.
Electromagnetic Spectrum Atomic Emission Spectrum.
Arrangement of Electrons in Atoms Chapter 4. Properties of Light Electromagnetic Radiation- which is a form of energy that exhibits wavelength behavior.
Atomic Models Scientist studying the atom quickly determined that protons and neutrons are found in the nucleus of an atom. The location and arrangement.
Quantum Cloud Model Why did Bohr propose the orbit or planetary model? Why did Bohr propose the orbit or planetary model? He based it on experiments with.
1 The Quantum Mechanical Model of the Atom Chapter 7.
Unit 3 - The Modern Atom What is our model of the Atom? What is wrong with it? Homework: pg Q&P # 7, 8, 12-14, 20, 25, 31, 32, 36-39, 45, 50,
Quantum Theory and the Electronic Structure of Atoms Chapter 7.
Quantum Theory the modern atomic model. Bohr Model of the Atom a quantum model proposed by Niels Bohr in 1913 It helped to explain why the atomic emission.
Quantum Atom. Problem Bohr model of the atom only successfully predicted the behavior of hydrogen Good start, but needed refinement.
Chapter 7 Atomic Structure & Periodicity. Electromagnetic Radiation O Waves (wavelength, frequency & speed) O  c (page 342: #39) O Hertz O Max Planck.
Unit 2 – Electrons and Periodic Behavior Cartoon courtesy of NearingZero.net.
Chapter 4 - Electrons. Properties of Light What is light? A form of electromagnetic radiation: energy that exhibits wavelike behavior as it travels through.
Arrangement of Electrons in Atoms
CHAPTER 12 ELECTRONS IN ATOMS BRODERSEN HONORS CHEM 2013/14.
Chapter 7: Atoms and Light. Low ν High ν Electromagnetic Radiation.
Quantum Theory and the Electronic Structure of Atoms General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Wave Properties A wave is defined as a continuously.
Chapter 7 The Quantum- Mechanical Model of the Atom.
Section 4-1 Continued.  Ground State – the lowest energy state of an atom  Excited State – a state in which an atom has a higher energy than in its.
Chapter 7: Quantum theory of the atom Chemistry 1061: Principles of Chemistry I Andy Aspaas, Instructor.
Section 3: Modern Atomic Theory
The Electronic structure of an atom. Bohr’s model of an Atom Electrons located in circular orbits around an atom When an electron absorbs or emits energy.
Models of the Atom.  An atomic orbital is a region of space where an electron can be found  There are energy levels existing outside the nucleus ◦ These.
Electrons in Atoms Chapter Wave Nature of Light  Electromagnetic Radiation is a form of energy that exhibits wavelike behavior as it travels through.
Electron Orbitals Cartoon courtesy of lab-initio.com.
Models of the Atom Chapter 4 Chm and
Quantum Atom. Problem Bohr model of the atom only successfully predicted the behavior of hydrogen Good start, but needed refinement.
4.2b Quantum Numbers and Atomic Orbitals. POINT > Describe the Principle Quantum number as an energy level POINT > Calculate number of electrons at different.
Light Light is a kind of electromagnetic radiation, which is a from of energy that exhibits wavelike behavior as it travels through space. Other forms.
Chapter 7 Atomic Structure.
Parts of Unit 4 part b Electrons and Periodic Behavior
Chapter 3 Atoms and Elements
4.2b Quantum Numbers and Atomic Orbitals
4.7 – NOTES Intro to Electron Configurations
The Molecular Nature of Matter and Change
Waves.
Electrons in Atoms Chapter 5.
Quantum Mechanics and atomic structure
The Quantum (Wave) Mechanics Model
Chapter 4: Arrangement of Electrons in Atoms
The ELECTRON: Wave – Particle Duality
Electromagnetic Spectrum Atomic Emission Spectrum.
Part One Quantum Numbers.
Excited Gases & Atomic Structure
Presentation transcript:

ELECTROMAGNETIC SPECTRUM

OUTER (VALENCE) ELECTRONS AND ATOMIC STRUCTURE U.V. and VISIBLEOuter Valence Electrons in Atoms & Molecules Give Rise to Atomic and Molecular Spectra in U.V. and VISIBLE Portions of the Electromagnetic Spectrum

ORBITALS Remember: –An Atomic Orbital is actually a Wave Function which describes the probability of finding an electron in a particular region of space around a central nucleus

ENERGY LEVELS FOR HYDROGEN ATOMIC ORBITALS

ATOMIC QUANTUM NUMBERS 1,2,3,Principal Quantum No: n = 1,2,3,… Angular Momentum Q. No : l = 0,1, … (n- 1) -l,…0,…,+lMagnetic Q. No: m l = -l,…0,…,+l +/- ½Spin Q. No: s = +/- ½

ANGULAR QUANTUM NOS. Angular Q. No: Letter l = 0 s l = 1 p l = 2 d l = 3 f

ORBITALS vs. PRINCIPAL Q. No. n e.g. n = 4, l = 0,1,2,3 So l = 0 4s l = 1 4p l = 2 4d l = 3 4f

M l values (–1 …+1). Adds up to (2l +1) So: One 4s orbital Three 4 p orbitals Five 4d orbitals Seven 4f orbitals

HYDROGEN s ORBITALS

HYDROGEN 2p x ORBITALS

HYDROGEN 2p y ORBITALS

HYDROGEN 2p z ORBITALS

HYDROGEN 3d ORBITALS

Blackbody Radiation vs. Frequency (Wavelength)

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.