11.4 A,B. Definitions Orbital – a three dimensional region in which there is a high probability of finding an electron in an atom (represented by orbital.

Slides:

Advertisements

Similar presentations

Electron Configuration and Orbital Diagrams

Advertisements

Electron Configurations Electron configurations show the arrangement of electrons in an atom. A distinct electron configuration exists for atoms of each.

1 Chapter 3 Electronic Structure and Periodic Law 3.4 Electronic Configurations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Electronic Configuration Pauli exclusion principle – no two electrons in an atom can have the same four quantum numbers.

S- orbitals (l=0) p- orbital (l=1) d-orbital (l=2)

Electron Configuration Methods for expressing electron locations: 1.Configuration 2.Orbital Notation.

Electron Configurations

Electron Configurations

Three rules are used to determine electron arrangement in an atom. Section 3: Electron Configuration K What I Know W What I Want to Find Out L What I Learned.

Section 5.3 Quantum numbers and Atomic Orbitals Quantum numbers are numbers that specify the properties of atomic orbitals and of the electrons in that.

Levels/Shells Principal Quantum Number (1-7) (2 x level 2 ) determines the amount of electrons that can fit into that energy level Electron Organization.

ELECTRON CONFIGURATION The arrangement of electrons in an atom Each element has a distinct electron configuration Electron configuration describes the.

Writing Electron Configuration. Quantum Numbers Quantum numbers define the location of electrons in an atomic orbital. This helps us understand why different.

Chapter 5 Orbital Filling Diagrams and Electron Dot Diagrams.

ELECTRON DISTRIBUTION LAB. ELECTRON CONFIGURATIONS.

E LECTRON C ONFIGURATIONS Objectives: 1. Determine the electron configurations of several elements using the principles of orbital energy, orbital capacity,

How Electrons are Configured in Energy Shells   The lowest energy arrangement of electrons is the most stable. When electrons are arranged in the lowest.

 Electron Configuration is the way electrons are arranged around the nucleus.

1s orbital 2s orbital 2p orbitals 3s3s orbital Nucleus Electron energy levels have sublevels of different shapes.

2.06 Electron Configuration Parts I and II. Part I: Bohr Model of the Atom How are electrons arranged in an atom? Bohr: Electrons in definite energy levels.

SECTION 3: ELECTRON CONFIGURATIONS CHAPTER 9: ELECTRONS IN ATOMS AND THE PERIODIC TABLE.

Electrons in the Atom. Heisenberg Uncertainty Principle This is the theory that states that it is impossible to determine simultaneously both the position.

Electron Configuration

Electrons in Atoms Chapter 5. Chapter 5: Electrons in Atoms 5.1 Light and Quantized Energy Wave nature of light.

Electron Configurations Unit 3. What are electron configurations? According to the wave mechanical model, the electrons in an atom move around in the.

Electron Configurations Chapter 5. Aufbau Principle  Aufbau Principle: Electrons occupy the lowest energy orbital available.

Protons, Neutrons, and Electrons

Electron Configuration and Periodic Trends

Electron Arrangement in Atoms.  Electron configurations  Aufbau principle  Pauli exclusion principle  Hund’s rule.

Electron configurations

Electron Configurations. The way electrons are arranged in atoms.

Arrangement of the Atom

Electron Configurations Section 5.3. Objectives Apply the Pauli Exclusion Principle, the Aufbau Principle, and Hund’s Rule to write electron configurations.

Electron Configurations

Electron Configurations Where the electrons are in the energy levels and orbitals. The configuration that requires the least energy is the most stable.

Section 4-3 Electron Configurations. Quantum Mechanical Model Energy Levels have sublevels Each sublevel contains orbitals –Orbital – a 3-D region around.

STATES OF AN ATOM Ground state: when an atom is at its lowest energy level Excited state when at atom gains energy.

Electron Configuration Chemistry Mrs. Coyle. Electron Configuration The way electrons are arranged around the nucleus.

CHAPTER FOUR – ELECTRON CONFIGURATION SOUTH LAKE HIGH SCHOOL SCIENCE DEPARTMENT MS. SANDERS Chemistry.

Electron Configuration

Electron Configuration. WHHYYYYY do we need to learn this? When atoms interact, it’s the valence electrons that interact first. Atoms are least stable.

Section 3: Electron Configuration

Electron Configurations

Orbital Notation, Valence Electrons & Lewis Dot Structures

Electron Arrangement in an Atom

Electron Configuration Orbital Notation Lewis-Electron Dot Diagram

Unit 3 – Electron Configurations Part F: Electron Configurations II

Electron Configuration

Electron Configuration

Electron Configuration

ELECTRON CONFIGURATIONS

Orbitals each sublevel is broken into orbitals

Unit 3 – Electron Configurations Part F: Electron Configurations II

Electron Arrangement in Atoms

Atomic Orbitals The energy levels of electrons are labeled by principal quantum numbers (n) Each energy sublevel corresponds to an orbital of a different.

Electron Arrangement.

Electron Configurations

3.3 Electron Configuration

Electron Configuration and Valence Electrons

Electron Arrangement in Atoms

Atomic Orbitals and Electron Arrangement

How can you express the arrangement of electrons in atoms through electron configurations? In an atom, electrons and the nucleus interact to make the most.

Atomic Structure Orbital Diagrams.

Electron Energy Level Notes

Section 5.2 – Electron Arrangement in Atoms

How are electrons organized around a nucleus?

Electron Configuration

Electron Configurations

Where exactly are the electrons? It’s all a little cloudy!

Electron configuration

Presentation transcript:

11.4 A,B

Definitions Orbital – a three dimensional region in which there is a high probability of finding an electron in an atom (represented by orbital box diagrams) Electron configurations- shows the electron arrangement of certain elements

Principles Aufbau’s Principle- electrons fill orbitals starting at the lowest available energy levels. ( there is a definite order in how the energy levels are filled) Pauli’s exclusion Principle- an atomic orbital can hold a maximum of two electrons, and those two electrons must have opposite spins. Hund’s rule-states that unoccupied orbitals will be filled before occupied orbitals are reused (by electrons having different spins).

Order of orbital diagrams and electron configurations

Orbital Filling

s, p, d and f orbitals An orbital is represented in the diagrams by a box that can hold 2 electrons s orbital can hold up to 2 electrons (1 box) p orbitals can hold up to 6 electrons (3 boxes) d orbitals can hold up to 10 electrons (5 boxes) f orbitals can hold up to 14 electrons (7 boxes)

Orbital Diagrams

Orbital Diagrams to Electron Configurations

Noble Gas Electron Configuration Shortcut

Noble Gas Configuration

Lewis Dot Structures shows valence electrons