The Atomic Theory 1.Atomic Theory Matching 2.Atom Size 3.Democritus 4.Dalton – Ball Model 5.J.J. Thompson – Raisin Bun Model 6.Rutherford – Gold Foil Experiment.

Slides:

Advertisements

Similar presentations

Elements & Atoms Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models.

Advertisements

Democritus Dalton 3. JJ Thomson 4. Rutherford 5. Bohr 6. Chadwick

ATOMIC STRUCTURE AND HISTORY

Atomic Structure. What is an Atom? The smallest part of an element.

Atomic Theory “History of. . . ”.

Democritus (460 BC-350BC) was a Greek philosopher who thought that all matter was made of tiny indivisible particles he called atomos.

The History of the Atom.

The History of Atomic Theory

History of Atomic Theory 1

Atoms: Development of the Atomic Theory

1 Unit 1: Atoms, Elements, and Compounds Pages Lithium Atom Element Lithium By Lester Green Smallwood Academy Gambo.

9/10/12 Atom and the History of the Atom

Atom Models From Democritus to Bohr’s.

Unit: Atomic Structure

Chapter 3 The History of the Atom. I. The Scientists and their Discoveries A.Democritus 1. Date = 400 B.C 2. Discovery = Theorized the smallest unit of.

The History of the ATOM.

Chemistry: Matter and Chemical Bonding Early Atomic Theories.

Atomic Structure and History of the Atomic Theory

Atomic Structure and History of the Atomic Theory

History of Atomic Structure Atoms: their parts & pieces.

Atomic Theory “History of... ”. The Ancient Greeks Democritus and other Ancient Greeks were the first to describe the atom around 400 B.C. The atom was.

Early Models of the Atom History of the Atom Standard Atomic Notation Some Intro Songs for your entertainment: The Atom Song:

The Changing Models of the Atom

What is an _________? The smallest particle of an ________ that is still an ________ _________ are the building blocks of all ___________.

ATOMS PROJECT CKS ATOMISM Atomism is the theory that all the objects in the universe are composed of very small, indestructible building blocks. Atomism.

The Atomic Theory 1.Atomic Theory Matching 2.Atom Size 3.Democritus 4.Dalton – Ball Model 5.J.J. Thompson – Raisin Bun Model 6.Rutherford – Gold Foil Experiment.

A Brief History of Atomic Theory This Section will focus on Scientists who have had an impact on the study of the atom.

Atomic Models This model of the atom may look familiar to you. This is the Bohr model. In this model, the nucleus is orbited by electrons, which are in.

The Development of the Atomic Theory. Dalton’s Atomic Theory founder of the atomic theory atoms in Greek means indivisible, indestructible 1.All matter.

Atomic Theory Grade 9 Science. Theories and Laws What’s the difference between a theory and a law??

Atomic Structure.

How did the atomic theory develop and change into the modern model of the atom?

Do Now: 1.On the blank side of an index card, draw a picture of an atom. 2.On the other side of the index card, write down things that you know about atoms.

The Atomic Theory Democritus Dalton 440 B.C. – Thought matter was made of tiny particles – Believed these particles could not be cut into anything smaller.

Atomic Theories: How do we know what atoms are made of?

History of the Atomic Model How the model of the atom has changed or evolved over time.

Investigating Atoms and Atomic Theory Students should be able to: – Describe the particle theory of matter. PS.2a – Use the Bohr model to differentiate.

A Brief History of Atomic Theory This Section will focus on Scientists who have had an impact on the study of the atom.

The Changing Model of the Atom

Atomic Theory Democritus to Rutherford. Democritus - Ancient Greece w Philosophical question: Could matter be divided into smaller and smaller pieces.

Copyright © 2011 InteractiveScienceLessons.com™ John Dalton (1803) J.J. Thomson (1897) Ernest Rutherford (1906) Niels Bohr (1913) Electron Cloud (Current)

Atomic Structure Where our ideas of the atom come from and what we know now.

DEMOCRITUS ( B.C.) Atoms are indivisible, smallest particles.

Historical Development of an Atom. Democritus B.C Democritus was a Greek philosopher ( B.C.) who is the father of modern atomic thought.

The Beginning of the Atomic Theory Democritus was a Greek philosopher who was among the first to suggest the existence of atoms. 460 BC – 370 BC.

Atomos: Not to Be Cut The History of Atomic Theory.

THE STRUCTURE OF THE ATOM.  All atoms consist of 2 regions:  1) Nucleus: very small region located near the center of the atom  Proton: positively.

I. Atomic History A.Democritus ( BC) 1.Ancient Greek philosopher 2.Proposed matter was made of tiny indivisible particles 3.He called them atoms.

Greeks Before 400 BC Observers (not scientists) did not use scientific experiments Matter could be endlessly divided Matter is made of fire, water, air,

Can you match the scientists’ names to their pictures? Democritus Dalton JJ Thomson Rutherford Bohr De Broglie Schrodinger.

The Changing Model of the Atom From Democritus to Bohr.

Atomic Structure Section 4-1. Democritus Greek philosopher 4 th Century BC First to come up with “atom”. Matter is composed of tiny particles called atoms.

DEVELOPMENT OF THE ATOMIC THEORY Atom- smallest particle into which an element can be divided and still be the same substance Called the building blocks.

The Changing Model of the Atom. Aristotle 400 BCE claimed that there was no smallest part of matter different substances were made up of different proportions.

Atomic Theory and Structure Overview

The History of the Atom.

Ch. 4: Introduction to Atoms

Atomic Theory “History of. . . ”.

The Atomic Theory Atomic Theory Matching Atom Size Democritus

Agenda Development of Atomic Model History Atomic Structure Simulation.

A Brief History of the Atom & Atomic Models

UNDERSTANDING THE PROPERTIES OF ELEMENTS

Chem Today: Development of Atomic Model History.

Atomic Structure “Jiminy Jillikers!”.

Atomic Theory The idea that matter is made up of atoms, the smallest pieces of matter.

The Atomic Theory Atomic Theory Matching Atom Size Democritus

Presentation transcript:

The Atomic Theory 1.Atomic Theory Matching 2.Atom Size 3.Democritus 4.Dalton – Ball Model 5.J.J. Thompson – Raisin Bun Model 6.Rutherford – Gold Foil Experiment 7.Bohr – Energy Level Model

TeachWithFergy Preview File

Whose theory was it anyways? - WORKSHEET IS INCLUDED WITH LESSON PACKAGE - Match the scientist with his model of the atom as well as his atomic explanation.

How are atoms studied? ____________ Atoms are too small in size to study easily Size of Earth : soda can …………….. Simulation  Simulation Removed

This slide has been removed

The Greek philosopher Democritus (460 B.C. – 370 B.C.) was among the first to suggest the existence of atoms The Greek philosopher Democritus (460 B.C. – 370 B.C.) was among the first to suggest the existence of atoms ___________

Dalton’s Atomic Theory – The Ball Model: 1800s Referred to the atom as a small, hard, indestructible sphere that cannot be subdivided ___________ An atom is the smallest ……………. ……………….

J.J. Thomson In 1897 J.J. Thomson demonstrated that ………………. After further investigation he concluded that the same negatively charged …………. ___________

This slide has been removed

Thomson’s Atomic Model Thomson believed that the electrons were like plums embedded in a positively charged “pudding” ___________

Ernest Rutherford’s Gold Foil Experiment  “ +” charged …………  ___________

This slide has been removed

What he actually found Most of the alpha particles slightly deflected and carried on but some bounced backwards ___________

Rutherford’s Gold Foil Experiment

Rutherford’s Findings  Most of the particles passed right through  A few ………………….  ___________ ……………..

The Rutherford Atomic Model Based on his experimental evidence he concluded that the atom: …………….. Contains a ………….. ___________

This slide has been removed

The Bohr-Rutherford Model _______________ Electrons move in …………… Electrons more or less stay in their orbit unless …………. Video Removed