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The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not tomos = cut

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Dalton’s drawings of atoms

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Page 1: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms

a = not

tomos = cut

Page 2: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

but it was John Dalton, who lived in Manchester, who proved it more than 2000 years later

Page 3: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Dalton’s drawings of atoms

Page 4: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Paper read to the Manchester Literary and Philosophical Society, 20th October

1803

Page 5: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

1/3 nm

CO2

Page 6: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

C + O2 → CO2

The arrow is at least as important as it describes the

chemical reaction

Page 7: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Paper read to the Manchester Literary and Philosophical Society, 20th October

1803

H

N

C

O

Page 8: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

http://en.wikipedia.org/wiki/John_Dalton

Page 9: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical.

http://en.wikipedia.org/wiki/John_Dalton

http://en.wikipedia.org/wiki/Chemical_element
Page 10: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical. 3. Atoms of one element can combine with atoms of other

elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.

http://en.wikipedia.org/wiki/John_Dalton

http://en.wikipedia.org/wiki/Chemical_element
http://en.wikipedia.org/wiki/Chemical_compound
Page 11: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical. 3. Atoms of one element can combine with atoms of other

elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.

4. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.

http://en.wikipedia.org/wiki/John_Dalton

http://en.wikipedia.org/wiki/Chemical_element
http://en.wikipedia.org/wiki/Chemical_compound
http://en.wikipedia.org/wiki/Chemical_reaction
Page 12: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical. 3. Atoms of one element can combine with atoms of other

elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.

4. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.

5. Elements are made of tiny particles called atoms.

http://en.wikipedia.org/wiki/John_Dalton

http://en.wikipedia.org/wiki/Chemical_element
http://en.wikipedia.org/wiki/Chemical_compound
http://en.wikipedia.org/wiki/Chemical_reaction
http://en.wikipedia.org/wiki/Atom
Page 13: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical. 3. Atoms of one element can combine with atoms of other

elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.

4. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.

5. Elements are made of tiny particles called atoms.

Dalton proposed an additional "rule of greatest simplicity" that created controversy, since it could not be independently confirmed.

http://en.wikipedia.org/wiki/John_Dalton

http://en.wikipedia.org/wiki/Chemical_element
Page 14: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory1. The atoms of a given element are different from those of any

other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.

2. All atoms of a given element are identical. 3. Atoms of one element can combine with atoms of other

elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.

4. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.

5. Elements are made of tiny particles called atoms.

Dalton proposed an additional "rule of greatest simplicity" that created controversy, since it could not be independently confirmed. When atoms combine in only one ratio, "..it must be presumed to be a binary one, unless some cause appear to the contrary".

http://en.wikipedia.org/wiki/John_Dalton

Page 15: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not
Page 16: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

H

N

C

O

Page 17: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO

H

N

C

O

Page 18: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN

H

N

C

O

Page 19: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO

H

N

C

O

Page 20: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC

H

N

C

O

Page 21: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

H

N

C

O

Page 22: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

NON

H

N

C

O

Page 23: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

NON ONO

H

N

C

O

Page 24: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

OCONON ONO

H

N

C

O

Page 25: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

OCO HCHNON ONO

H

N

C

O

Page 26: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

HO HN NO HC OC

OCO HCHNON ONO

NO3

H

N

C

O

Page 27: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Dalton was the first NanotechnologistSo

Page 28: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Five main points of Dalton's atomic theory

http://en.wikipedia.org/wiki/John_Dalton

Page 29: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not
Page 30: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

CO2

Page 31: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

John Dalton

Page 32: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

John Dalton

Page 33: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

Paper read to the Manchester Literary and Philosophical Society, 20th October

1803

Page 34: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

NN&Nanoscience

Nanotechnologyis 200 years old

Page 35: The Greek philosophers, Leucipus and Democritus, suggested that everything, including us, was made of tiny indivisible particles - called atoms a = not

CO2


Chapter 4 The Structure of the Atom. Chapter 4 Democritus: Greek philosopher coined the word “atom”. Greek word comes from “atomos” meaning indivisible

Mullis1 Democritus (460-370 B.C.) Democritus was one of a few Greek philosophers who believed that all matter in the world was made of of indivisible parts

Atomic Theory Atomic Theory The History of the Atom Original idea – Greek Democritus – 460 B.C. Thought there were ‘indivisible particles’ that everything

Development of the Atomic Theory. Democritus 460 BC - Greek philosopher proposes the existence of the atom ; calls it Atomos meaning indivisible. His

Democritus: The Atom (around 400 BCE) Democritus thought matter could be divided into smaller and smaller pieces until a single indivisible particle is

Ch. 3: Atoms 3.1 Foundations. History Democritus named the most basic particle named the most basic particle atom- means “indivisible atom- means “indivisible

Pre-Socratic Philosophers. Reality is One Thales Anaximander Anaximenes Pythagoras Heraclitus Parmenides Zeno Reality is Many Empedocles Anaxagoras Democritus

Early Atomic Theorists Democritus (460-370 BC) John Dalton (1766-1844) All matter is composed of atoms that are indestructible and indivisible Research

The Atom Chapter 3. From Idea to Theory Democritus, Greek philosopher, 400 B.C., introduced the concept of an atom, an ‘indivisible’ particle. Democritus,

Physical Science CHEMICAL BONDS. Atomic Models in History Democritus, Greek philosopher, around 400 BC used the term “atomos” which means “indivisible-unbreakable”

Chapter 4 Atomic Structure. Democritus Greek Philosopher First to suggest the idea of atoms. Believed atoms were indivisible & indestructible

What is matter ? Democritus ((& Leucippus)) ~ 400 BC Early philosophers thought that the material world must be made up of tiny indivisible particles called

Religion, science and philosophy. New AtheistsAgnosticsChristian theists Democritus Epicurus Lucretius Plato, Aristotle Stoic, sceptic Philosophers Egyptians

Atomic Models and Electron Configuration. The history of the atomic model Democritus Created in 400 BC Atoms are indivisible and indestructible Not scientifically

Unit 2: Atomic Theory and Structure. (c. 400 B.C.) Democritus proposed that “atomos” are indivisible. Atom: smallest particle of matter that retains its

Democritus- Greek philosopher who lived around 400 BC who proposed: The universe is made of indivisible units. Called these units atoms, from the

Atoms: The Building Blocks of Matter. PART 1 Democritus [400 B.C] Greek philosopher Hypothesized: Nature has a basic indivisible particle of which

Democritus and the Natural Philosophers Greek geeks and what they thought

The Atom. The Building Block of Matter 400 BC Democritus (Greek Philosopher) Atomos = “indivisible” …like a brick is used to build a building; an

Ch. 4: Atomic Structure 4.1 Defining the Atom. History Democritus named the most basic particle named the most basic particle atom- means “indivisible”

Chapter 4 Atomic Structure. Section 4.1 Ancient Greek Theory Democritus named atoms, for the Greek word which means indivisible. Aristotle believed that

The History of Atomic Structure. Democritus Named the atom from the Greek word “atomos” meaning indivisible. Wrote that atoms were the smallest unit

Chapter 3 Notes. The Atom: From Idea to Theory Historical Background In approximately 400 BC, Democritus (Greek) coins the term“atom” (means indivisible)

Atomic Theory. Democritus (460 BC- 370 BC) His mentor Leucippus Everything is composed of “atoms” Atoms are physically indivisible Between atoms is empty

Particles and Waves. Early Atom Models Democritus (2500 years ago)—tiny indivisible particles, atmos Dalton (1803) Each element composed of extremely

Chapter 2 Notes Atomic Structure. Atoms Democritus – Ancient Greek Science dude, 1 st proposed the idea of atoms, tiny indivisible particles Atomos –

Electrons in Atoms. Democritus (400 B.C.) Proposed that matter was composed of tiny indivisible particles Not based on experimental data Greek: atomos

Atomic Physics. Atomic structure discovered Ancient Greeks Democritus (460-362 BC) - indivisible particles called “atoms” Prevailing argument (Plato and

Chapter 4 Atomic Structure ___________ means indivisible, from Democritus (Greek, 400BC) smallest particle of an element that retains the chemical properties

Atomic Discovery Early Models of the Atom 400 B.C. – Democritus proposed the existence of fundamental particles of matter that were indivisible and indestructible

Matter. Origins of the Idea Democritus (~400 BCE) –Matter is composed of atoms –Atoms are eternal, invisible, indivisible, and incompressible Greeks believed

Atomic Theory and Structure Chapters 4-5 Atomic Theories Democritus ~ 400 BC believed that atoms were indivisible and indestructible Dalton ~ 1800’s

Go to section Chapter 4 Atomic Structure. Go to section History of Atom Democritus (2500 YEARS AGO) Greek philosopher –Atmos – “uncut” or “indivisible”

II. History of atomic structure A. Democritus – 500 BCE Theorized that matter is composed of small, indivisible particles = ATOMOS (Greek for indivisible)

Chapter 4. 4.1 Atoms Democritus (460 BC – 370 BC) first suggested the idea of atoms Indivisible and indestructible