Presentation is loading. Please wait.

Presentation is loading. Please wait.

Structure électronique des atomes & Schéma de Lewis

Published byAntonio McKinnon Modified over 11 years ago

Similar presentations

Presentation on theme: "Structure électronique des atomes & Schéma de Lewis"— Presentation transcript:

1 Structure électronique des atomes & Schéma de Lewis

2 Agencement des électrons
Couches électroniques

3 Agencement des électrons
Couches K,L,M…

4 Agencement des électrons
Couches K,L,M… noyau

5 Agencement des électrons
Couches K,L,M… K noyau

6 Agencement des électrons
Couches K,L,M… K L noyau

7 Agencement des électrons
Couches K,L,M… K L M noyau

8 Agencement des électrons
Couches K,L,M… K L M … noyau

9 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

10 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

11 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

12 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

13 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

14 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

15 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

16 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

17 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

18 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

19 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

20 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

21 Remplissage des couches
Exemple de l’atome de sodium Na (Z=11)

22 Structure électronique
Exemple de l’atome de sodium Na (Z=11)

23 Structure électronique
Exemple de l’atome de sodium Na (Z=11) (K)2

24 Structure électronique
Exemple de l’atome de sodium Na (Z=11) (K)2(L)8

25 Structure électronique
Exemple de l’atome de sodium Na (Z=11) (K)2(L)8(M)1

26 Structure électronique
Exemple de l’atome de sodium Na (Z=11) (K)2(L)8(M)1

27 Schéma de Lewis

28 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16)

29 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16) (K)2(L)8(M)6

30 Schéma de Lewis Couche externe uniquement
Exemple de l’atome de soufre S (Z=16) (K)2(L)8(M)6 Couche externe uniquement

31 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16)

32 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16)

33 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16) 6 électrons :

34 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16) 6 électrons : 2 doublets

35 2 électrons célibataires
Schéma de Lewis Exemple de l’atome de soufre S (Z=16) 6 électrons : 2 doublets + 2 électrons célibataires

36 Exemple de l’atome de soufre S (Z=16)
Schéma de Lewis Exemple de l’atome de soufre S (Z=16) S

37 Schéma de Lewis Exemples

38 Schéma de Lewis Exemples Exemples hydrogène

39 Schéma de Lewis Exemples Exemples hydrogène H

40 Schéma de Lewis Exemples Exemples hydrogène H oxygène

41 Schéma de Lewis Exemples Exemples hydrogène H oxygène O

42 Schéma de Lewis Exemples Exemples hydrogène H oxygène O phosphore

43 Schéma de Lewis Exemples Exemples hydrogène H oxygène O phosphore P

44 Schéma de Lewis H O P Exemples Exemples hydrogène oxygène phosphore
carbone

45 Schéma de Lewis H O P C Exemples Exemples hydrogène oxygène phosphore
carbone C

46 Auteur : Alexandra Ambert
Fin Auteur : Alexandra Ambert

Download ppt "Structure électronique des atomes & Schéma de Lewis"

Similar presentations

Category 5 Category 4 Category 3 Category 2 Category 1 50 40 30 20 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50.

Category 5 Category 4 Category 3 Category 2 Category
How to Count Atoms. Coefficient If an element or molecule has a LARGE number in front of it, this is how many atoms of each element there is. Example:

How to Count Atoms. Coefficient If an element or molecule has a LARGE number in front of it, this is how many atoms of each element there is. Example:
A) 80 b) 53 c) 13 d) 25. 53 -25 372 5 x 2 = 10 37 : 10 = 3,7 - 309 063 103 x 3 = 309.

A) 80 b) 53 c) 13 d) x 2 = : 10 = 3, x 3 = 309.
Counting Atoms Obviously, there are more materials in the world than just 100 or so elements on the periodic table.

Counting Atoms Obviously, there are more materials in the world than just 100 or so elements on the periodic table.
Carbon Compounds. What do we know about the structure of Carbon? # of p= e= n= valence electrons= p= n=

Carbon Compounds. What do we know about the structure of Carbon? # of p= e= n= valence electrons= p= n=
PRACTICE DRAWING ATOMS. DRAWING ATOMS RULES PROTONS = Atomic number ELECTRONS = Atomic number NEUTRONS = mass number – atomic number 1 st level can hold.

PRACTICE DRAWING ATOMS. DRAWING ATOMS RULES PROTONS = Atomic number ELECTRONS = Atomic number NEUTRONS = mass number – atomic number 1 st level can hold.
Tech Notes: Why Atoms Combine  Molecule and Compound:  Two or more atoms chemically combined  Have completely different properties than those of the.

Tech Notes: Why Atoms Combine  Molecule and Compound:  Two or more atoms chemically combined  Have completely different properties than those of the.
Bell Work: Draw the Lewis dot diagram for the following elements: 1.Potassium 2.Phosphorous 3.Calcium 4.Carbon 5.Chlorine.

Bell Work: Draw the Lewis dot diagram for the following elements: 1.Potassium 2.Phosphorous 3.Calcium 4.Carbon 5.Chlorine.
Last Night’s Homework: Read section 9.1 and answer question 12 on page 247.

Last Night’s Homework: Read section 9.1 and answer question 12 on page 247.
# of valence electrons = 1 P: 3 N: 4 - - - P+: 3 e-: 3 N: 4 Let’s do together:

# of valence electrons = 1 P: 3 N: P+: 3 e-: 3 N: 4 Let’s do together:
18 Bohr Models Lesson 3.1 Extension. Element Name: _______________________ Chemical Symbol: _______Atomic Number: _______ Diagram the Bohr atom which.

18 Bohr Models Lesson 3.1 Extension. Element Name: _______________________ Chemical Symbol: _______Atomic Number: _______ Diagram the Bohr atom which.
Mass Spectrometer. Atomic Number Atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element. Element# of protonsAtomic.

Mass Spectrometer. Atomic Number Atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element. Element# of protonsAtomic.
Final Exam Review Review 2. Copy down and answer the following questions. You may use your book or notebook if necessary. 1.What are valence electrons?

Final Exam Review Review 2. Copy down and answer the following questions. You may use your book or notebook if necessary. 1.What are valence electrons?
Outline the history of the atomic model. Agenda for Tuesday Dec 14 th 1.Atoms 2.Atomic mass, #, protons, etc.

Outline the history of the atomic model. Agenda for Tuesday Dec 14 th 1.Atoms 2.Atomic mass, #, protons, etc.
Bohr Diagrams or Shell Models

Bohr Diagrams or Shell Models
Warm-up: Concept: Ionic Bonding. Determine the product of each reaction. 1.Na + Cl  ? 2.K + O  ?

Warm-up: Concept: Ionic Bonding. Determine the product of each reaction. 1.Na + Cl  ? 2.K + O  ?
ELECTRONS. Review Electrons were discovered by ______________ Electrons have a ___________ charge Electrons are located…. Outside of the nucleus in an.

ELECTRONS. Review Electrons were discovered by ______________ Electrons have a ___________ charge Electrons are located…. Outside of the nucleus in an.
Ch.5, Section 1.  Some electrons are found close to the nucleus of an atom  Remember, they have low energy levels Electrons found furthest away from.

Ch.5, Section 1.  Some electrons are found close to the nucleus of an atom  Remember, they have low energy levels Electrons found furthest away from.
Valence Electrons and Lewis Dot Structures. 118 Known Elements 1 ve - 2 ve - 3 ve - 4 ve - 5 ve - 6 ve - 7 ve - 8 ve - ve - = valence electrons IGNORE.

Valence Electrons and Lewis Dot Structures. 118 Known Elements 1 ve - 2 ve - 3 ve - 4 ve - 5 ve - 6 ve - 7 ve - 8 ve - ve - = valence electrons IGNORE.
A chemical formula is a representation of how many atoms are in a substance. E.g. HCl Hydrogen Chloride 1 Hydrogen atom; 1 Chlorine atom 0 overall charge.

A chemical formula is a representation of how many atoms are in a substance. E.g. HCl Hydrogen Chloride 1 Hydrogen atom; 1 Chlorine atom 0 overall charge.

Similar presentations

Ads by Google