Electron Distribution Goal: Determine electron structures in atoms Orbital level Sublevel.

Slides:

Advertisements

Similar presentations

Chemistry Daily 10’s Week According to the quantum theory of an atom, in an orbital A. an electron's position cannot be known precisely. B. an.

Advertisements

Quantum Number Keep in mind are probabilities of finding electrons in certain places doing certain things(spin). n = what energy level (1, 2, 3, 4...)

Hund’s Rule, Orbital Diagrams, and Valence Electrons

Orbital Filling Electron Configurations Where do these electrons go?

Quantum Numbers How to find your atom’s address in the Periodic Table Hotel.

Quantum Mechanical Model: Electron Configurations

After today, you will be able to…

Electron Configuration Writing e - configurations Drawing orbital notations.

Electron Configurations

Electron Configurations 4.3. Pauli Exclusion Principle  No more than two e- can occupy a single orbital at a time  e- spin in opposite directions 

Electrons in Atoms.  So, you live on Aspen St., but what is your exact address?  We know that electrons can occupy energy levels, but they can also.

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

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

Unit 4: The Atom & the Electron Configurtation James Hutchison.

Chemistry Notes Electron Configurations. Studying the arrangement of electrons in atoms helps one understand chemical activity. From an electron configuration.

Orbitals and Electron Configurations Mrs Russotto.

Energy Levels Each energy level has a number called the PRINCIPAL QUANTUM NUMBER, n Each energy level has a number called the PRINCIPAL QUANTUM NUMBER,

Wednesday, October 21 st, 2015 Bohr Model of the Atom.

Section Electron Configurations. Objectives Arrange electrons in atoms Describe quantum mechanics in terms of atomic orbitals Identify characteristics.

Protons, Neutrons, and Electrons

Electron Configuration and Periodic Trends

Electron Configurations. The way electrons are arranged in atoms.

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

Construction of an Atom Notes. Heisenberg Uncertainty Principle States that we cannot know the position and the speed of a moving object simultaneously.

The Quantum Mechanical Model of the Atom. Schrodinger The quantum mechanical model determines the energy an electron can have and the PROBABILITY of finding.

Quantum Numbers n, l, m, and s – Used to describe an electron in an atom Probable location n – Principal Quantum Number – Represents main energy level.

What are electron configurations? The way electrons are arranged in atoms. Used to indicate which orbitals (energy levels) are occupied by electrons for.

Order of orbitals (filling) in multi-electron atom 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s Aufbau Principle: an electron occupies the.

Electron Location: Part III Electron Configuration.

Bohr model and electron configuration. Bohr’s Model Why don’t the electrons fall into the nucleus? Move like planets around the sun. In circular orbits.

Protons and Neutrons form a nucleus.. Electrons Atomic Number and Mass Number Atomic Number Is the Number of Protons of the Nucleus.

Unit: Electron Configurations Writing Electron Configurations and Orbital Notations.

Aim: How do chemists represent an atom’s “electron configuration”? Vocabulary: Electron configuration- probable location of electron; the electron’s “address.”

Electrons in Atoms Learning Outcome

Quantum Numbers Quantum Numbers specify the properties of atomic orbitals and their electrons There are four quantum numbers: principal quantum number.

Arrangement of Electrons in Atoms

Quantum Mechanical Model

Chapter 5 Electronic Structure and Periodic Trends

Warm-up Write the noble gas configuration for the following neutral elements: K Se Ag U.

Chapter 5 Modern Atomic Models

Quantum Numbers, Electron Configuration, and Orbital Diagrams

Order of orbitals (filling) in multi-electron atom

Electron Configuration

Electrons: The Bohr Model, Orbitals, and Electron Configuration

Electron Configuration Orbital Notation Lewis-Electron Dot Diagram

Orbital Diagrams

Electron Configuration

The Electron Structure of the Atom

Pre – AP Physical Science

Electron Configuration

What things were wrong with Bohr’s atomic model?

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

Pre – AP Physical Science

Electron Configurations

Warm Up #7 Which is larger, neutral charged lithium, or lithium with a +1 charge? Why? Where are the most electronegative elements found? Why are the.

Quantum Model of Atom Energy levels (shells) are divided into sublevels (subshells). Electrons are found in orbitals in these sublevels.

Section 2: Electron Arrangement in Atoms

3.3 Electron Configuration

Atomic Orbitals and Electron Arrangement

Electron Configurations

Atomic Structure Orbital Diagrams.

Notes #5: History of the Atom (pt 5) - Orbitals!

Quantum Numbers.

ELECTRON CONFIGURATION.

Electron configurations

Electron Configuration

Pre – AP Physical Science

Presentation transcript:

Electron Distribution Goal: Determine electron structures in atoms Orbital level Sublevel

How are these organized? N = 1 N = 2 N = 3 N = 4 Level 1 sublevels Level 2 sublevels Level 4 sublevels Level 3 sublevels s s s s p p p d d f

Remember: 1s is smaller than 2s, 2s is smaller than 3s, etc. How about energy? Which has the most?

How do atoms put their electrons in these sublevels? Lowest energy levels are filled first. Sublevels are filled “s”, then “p”, then “d”, then “f”. Well, sort of...

Orbitals Principal quantum number 3s 3p 3d 4s 4p 4d 4f 1s 2s 2p 5s 5p 5d 5f 6s 6p 6d 6f 7s 7p 7d 7f s p d f

1s orbital holds two electrons e-

Then consider the next orbital: 2s (which also holds only two e-.) e-

Electron configuration for … Scandium Look up the number of electrons (same as the number of protons). Use the diagonal rule. Scandium is #21. That means Sc has _____ electrons

Electron configuration for … Scandium

Energy level (Principle Quantum #) # of electrons (add these) Sublevel

Electron configuration for … Scandium Add These

Practice Electron configurations for: Neon Aluminum Vanadium