Biology the atom

2. Composition of Matter

4. IS AIR MATTER? Does air have mass? Does air have volume? YES, to both, so air is matter yes

5. NO IS HEAT MATTER? Does heat have mass? Does heat have volume? no, to both, so heat is not matter

6. NO IS LIGHT MATTER? Does light have mass? Does light have volume? No, to both, so light is not matter

7. IS EMOTION MATTER? Does emotion have mass? Does emotion have volume ? No, to both, so emotion is not matter. NO

12. The Atom

13. The Atom

14. Protons Neutrons Nucleus

18. The Atom

21. Shells and the Electron Cloud 16

28. Periodic Table Periods go across on the periodic table Periods have the same number of “shells” 1 2 3 4 5 6 7

29. Periodic Table Groups go down on the periodic table Elements in the same group, have the same number of valence electrons 1 2 3 4 5 6 8 7

33. In the center is the nucleus and surround it is the electrons

34. Electron Configuration of Oxygen

35. Electron configuration of Scandium

36. Let’s look at a few elements… Hydrogen 1= Proton 1= electron

37. Let’s look at a few elements… Helium 2=protons 2=neutrons 2=electrons

38. Let’s look at a few elements… Lithium 3=protons 4=neutrons 3=electrons

39. Let’s look at a few elements… Fluorine 9=protons 10=neutrons 9=electrons

40. Let’s look at a few elements… Argon 18=protons 22=neutrons 18=electrons

41. Animation of element arrangement http://www.wjcc.k12.va.us/ROBB/Krypton.gif

47. Possible number of electrons in shells Rules for diagram SHELL ELECTRONS 1 2 2 8 3 4 16 32