1. Matters at atomic level Tran Anh Tuan Materials Engineer MES Team

2. Lecture map atomic arrangement in matters atomic bonding atomic structure covalent ionic metallic Van der Waals Gases Crystals Amorphous Liquids

3. Atomic structure

4. Atom = proton + neutron + electron

7. atomic arrangement in matters atomic bonding atomic structure covalent ionic metallic Van der Waals Gases Crystals Amorphous Liquids Lecture map

8. Atomic bonding

9. Covalent bonding

10. Covalent bonding Cl Cl

11. Covalent bonding Chemically Unstable Cl Cl Individual Cl atoms with 7 outer electrons

12. Covalent bonding Chemically Unstable bonding Cl Cl Cl Cl Individual Cl atoms with 7 outer electrons

13. Covalent bonding Chemically Unstable Chemically Stable bonding Cl Cl Cl Cl Individual Cl atoms with 7 outer electrons One Cl2 molecular with 8 outer electrons

14. Ionic bonding Li F

15. Ionic bonding Li F Individual Li and F atoms with 1 and 7 outer electrons Chemically Unstable

16. Ionic bonding Li F Individual Li and F atoms with 1 and 7 outer electrons Chemically Unstable

17. Ionic bonding Li F bonding Li F Individual Li and F atoms with 1 and 7 outer electrons One LiF molecular with 8 outer electrons Chemically Unstable Chemically Stable

18. Metallic bonding metallic ion free electron Balanced Coulombic Stochastic Interaction. Metallic materials

19. Van der Waals bonding positively charged negatively charged Usually seen in polymeric materials + - + - + - + - Polarized molecular

20. atomic arrangement in matters atomic bonding atomic structure covalent ionic metallic Van der Waals Gases Crystals Amorphous Liquids Lecture map

21. Atomic arrangement

22. Gaseous matters 2D illustration of atomic arrangement in gaseous matters

23. Gaseous matters absolutely chaotic 2D illustration of atomic arrangement in gaseous matters

24. Gaseous matters absolutely chaotic 2D illustration of atomic arrangement in gaseous matters no near - ordered

25. Gaseous matters absolutely chaotic 2D illustration of atomic arrangement in gaseous matters no near - ordered no far - ordered

26. Solid crystals 2D illustration of atomic arrangement in solid crystals

27. Solid crystals absolutely ordered 2D illustration of atomic arrangement in solid crystals

28. Solid crystals absolutely ordered near - ordered 2D illustration of atomic arrangement in solid crystals

29. Solid crystals absolutely ordered near - ordered far - ordered 2D illustration of atomic arrangement in solid crystals

30. Liquid and amorphous 2D illustration of atomic arrangement in liquids and amorphous

31. Liquid and amorphous Partly, unstably ordered 2D illustration of atomic arrangement in liquids and amorphous

32. Liquid and amorphous Partly, unstably ordered near - ordered 2D illustration of atomic arrangement in liquids and amorphous

33. Liquid and amorphous Partly, unstably ordered near - ordered no far - ordered 2D illustration of atomic arrangement in liquids and amorphous

34. End of Lecture 01 Next: Lecture 02: Crystal lattice