Electron Energy Levels

Slides:

Advertisements

Similar presentations

Orbital Filling Electron Configurations Where do these electrons go?

Advertisements

1. To describe Rutherford’s model of the atom 2. To explore the nature of electromagnetic radiation 3. To see how atoms emit light 11.1 Objectives.

Electron Configuration and Orbital Diagrams

Electron Configurations

Objectives To learn about the shapes of the s, p and d orbitals

Dot Structures.

Section 11.3 Atomic Orbitals 1.To learn about the shapes of the s, p and d orbitals 2.To review the energy levels and orbitals of the wave mechanical model.

Electron Configuration

Section 11.4 Electron Configurations and Atomic Properties 1.To understand how the principal energy levels fill with electrons in atoms beyond hydrogen.

Electron Configuration. The way electrons are arranged around the nucleus Electrons are organized around the nucleus so that they are at the lowest energy.

Electrons Core electrons Electrons found in the inner shells Valence electrons Found in the outermost shell of an atom Energy Levels Each layer or shell.

Section 11.1 Atoms and Energy 1.To describe Rutherford’s model of the atom 2.To explore the nature of electromagnetic radiation 3.To see how atoms emit.

Section 11.4 Electron Configurations and Atomic Properties 1.To understand how the principal energy levels fill with electrons in atoms beyond hydrogen.

Atomic Theory Atom –smallest part of an element with that element’s properties 2 parts –Nucleus Protons (positive charge, weigh 1 amu*) Neutrons (neutral.

Electron Configurations & the Periodic Table pg LO: I understand the connection between electron configurations of elements and their placement.

Electron Configuration. Periodic Table It is arranged so that similar chemical properties were arranged in vertical columns called groups. Because chemical.

Overview of the Periodic Table.  First periodic table  Elements were originally arranged in rows by ATOMIC MASS  He noticed that when arranged.

Periodic table & more How it’s arranged and how do electrons fill an atom….

Objectives To learn about the shapes of the s, p and d orbitals

Electron Configurations

Lecture 25 Electron Configuration Ozgur Unal

Lewis Dot Structure.

Electrons & Orbitals.

Electrons in Atoms Learning Outcome

The Periodic Table.

Orbital Notation, Valence Electrons & Lewis Dot Structures

Ions, Electrons and Periodicity

TRENDS IN THE PERIODIC TABLE

Orbitals and Electron Configurations

8.2 Families and Periods of the Periodic Table

Energy Levels, Sublevels & Orbitals

Electrons Core electrons Valence electrons Energy Levels

Quantum Wave Model.

Chapter 18 The Periodic Table.

Electron Configurations

Electron Configurations

Electron Configurations and Orbital Notation Diagrams

Unit 3 Part 2: Electrons.

Electrons: The Bohr Model, Orbitals, and Electron Configuration

Electron Configuration Orbital Notation Lewis-Electron Dot Diagram

Electron Configurations

Orbital Diagrams

Electron Configuration

Orbital Notation, Valence Electrons & Lewis Dot Structures

January 9th, 2018 I can illustrate a Bohr Diagram of the 1st 20 elements on the Periodic Table. SQRS: A chemical equation is shown below. C6H

Electron Configuration

Electron configuration

Notes 5 - Periodic Table Families & Groups

Periodic Table Organization

Electrons in Atoms Electron Configuration Orbital Notation

ELECTRON CONFIGURATION

Electron Configurations

Electron Arrangement and Bohr Diagrams

Energy Levels & Orbitals

The Periodic Table 5.3 and 5.4.

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.

Completing the Model of the Atom

Chapter Warm - Up 1. Describe the different parts of an atom.

Lesson 3.2 The Periodic Table

The Periodic Table 16.3.

Groups and Periods.

ELEMENTS AND THE PERIODIC TABLE

Electrons and Energy Levels

Electron configuration

Electron configuration explained

Objective (5.3 Cont.) Define valence electrons, and draw electron-dot structures representing an atom’s valence electrons.

Electron configuration

s – Sphere p – Dumbbell d – Clover f - ??? Probability & Orbitals

Presentation transcript:

Electron Energy Levels Electrons have different energy levels The farther the electron is from the nucleus, the more energy the electron has Electrons “fill” the energy levels from just outside the nucleus, outward Each of the seven energy levels have a maximum number of electrons they can hold Energy level 1 = up to 2 electrons Energy level 2 = up to 8 electrons Energy level 3 = up to 18 electrons Energy level 4 = up to 32 electrons Etc.

Electron Configuration http://www.chem4kids.com/files/elements/art/026_orbital.gif

Electron Energy Levels Scientists keep track of the electrons to help predict an element’s behavior The electron(s) in the highest (outermost) energy level define the chemical properties of the element and participate in chemical reactions (valence electrons) Elements in the same group (vertical columns of elements in the periodic table with similar properties) have the same number of electrons in their outer energy level

Electron Configuration The electron total for each element increases by 1 left to right on the periodic table When a period ends at the far right side, the outer energy level is filled All energy levels have sublevels called orbitals s orbital: holds up to 2 electrons p orbital: holds up to 6 electrons d orbital: holds up to 10 electrons f orbital: holds up to 14 electrons

Orbital Shapes http://boomeria.org/chemlectures/ch9orbitals1.jpg

Electron Configuration Steps for determining the electron configuration of an element: Determine the number of electrons the element has. Fill the lowest energy levels first and work your way up from the nucleus. Each orbital “box” gets one up arrow and one down arrow. Up arrows fill first, down arrows last. Write the electron configuration. (energy level number)(orbital) (electrons)

Orbital Diagram

Example: Fluorine Fluorine has 9 electrons. Fill the lowest energy levels first and work your way up from the nucleus. Each orbital “box” gets one up arrow and one down arrow. Up arrows fill first, down arrows last.

Orbital Diagram for Fluorine

Example: Fluorine Fluorine has 9 electrons. Fill the lowest energy levels first and work your way up from the nucleus. Each orbital “box” gets one up arrow and one down arrow. Up arrows fill first, down arrows last. Write the electron configuration.

Orbital Diagram for Fluorine 1s22s22p5

Orbital Diagram

Notice a Pattern? http://www.mpcfaculty.net/mark_bishop/periodic_table_blocks_alone.jpg