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1 elementnotes 0910

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  • Transcript

    • 1. WHAT IS AN ELEMENT? Introduction to Atoms
    • 2. ATOM Overview http://www.fotosearch.com/photos-images/atom.html
    • 3. ATOM OverviewReview: What are the 3kinds of matter? http://www.fotosearch.com/photos-images/atom.html
    • 4. ATOM OverviewReview: What are the 3kinds of matter?Atoms = Small piecesthat make up matter http://www.fotosearch.com/photos-images/atom.html
    • 5. ATOM OverviewReview: What are the 3kinds of matter?Atoms = Small piecesthat make up matter http://www.fotosearch.com/photos-images/atom.htmlHave two parts
    • 6. ATOM OverviewReview: What are the 3kinds of matter?Atoms = Small piecesthat make up matter http://www.fotosearch.com/photos-images/atom.htmlHave two parts The nucleus
    • 7. ATOM OverviewReview: What are the 3kinds of matter?Atoms = Small piecesthat make up matter http://www.fotosearch.com/photos-images/atom.htmlHave two parts The nucleus The electron cloud
    • 8. Parts of an Atom http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 9. Parts of an AtomNucleus: http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 10. Parts of an AtomNucleus: http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 11. Parts of an Atom Nucleus:A center with apositive charge http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 12. Parts of an Atom Nucleus:A center with apositive charge + http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 13. Parts of an Atom Electron Cloud: Nucleus:A center with apositive charge + http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 14. Parts of an Atom Electron Cloud: Nucleus:A center with apositive charge + http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 15. Parts of an Atom Electron Cloud: Nucleus: Cloud of Electrons thatA center with a have a negativepositive charge + charge http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 16. Parts of an Atom Electron Cloud: Nucleus: Cloud of - Electrons thatA center with a have a negativepositive charge + charge http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM1.html
    • 17. Confused about Charge?•Atoms are like batteries they havezero total charge.•Think about charges on an atomlike charges on a battery!On one end there is a positive (+)charge on the other a negative (-)charge, but the whole battery has www.diytrade.com/china/4/products/2196408/Pan...zero charge because they balanceout.
    • 18. A Closer Look at the Nucleus•2 particles http://www.fotosearch.com/photos-images/atom.html
    • 19. A Closer Look at the Nucleus•2 particles Proton (p+): a positive particle; weight 1 http://www.fotosearch.com/photos-images/atom.html
    • 20. A Closer Look at the Nucleus•2 particles Proton (p+): a positive particle; weight 1 http://www.fotosearch.com/photos-images/atom.html
    • 21. A Closer Look at the Nucleus•2 particles Proton (p+): a positive particle; weight 1 http://www.fotosearch.com/photos-images/atom.html •Neutron (n): a neutral particle, weight 1
    • 22. A Closer Look at the Nucleus•2 particles Proton (p+): a positive particle; weight 1 http://www.fotosearch.com/photos-images/atom.html •Neutron (n): a neutral particle, weight 1
    • 23. What is in the Electron Cloud?
    • 24. What is in the Electron Cloud?•Electron (e-): a negative particle; weight ~ 0
    • 25. What is in the Electron Cloud?•Electron (e-): a negative particle; weight ~ 0• Electrons zoom around the nucleus in circles
    • 26. What is in the Electron Cloud?•Electron (e-): a negative particle; weight ~ 0• Electrons zoom around the nucleus in circles
    • 27. ReflectionAfter your notes do a 3-2-1: List the 3 particles in an atom List the 2 parts of an atom Define an atom
    • 28. Atomic Particles Review ChartParticle Charge Mass/Weight Proton +1 1uNeutron 0 1uElectron -1 0u
    • 29. Atomic Particles Review Chart Particle Charge Mass/Weight Proton +1 1u Neutron 0 1u Electron -1 0uWhat two particles make up the nucleus?
    • 30. Atomic Weight and Charge Practice Problems
    • 31. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons?
    • 32. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons?• What is the weight of an atom with 5 protons, 5neutrons, and 5 electrons?
    • 33. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons?• What is the weight of an atom with 5 protons, 5neutrons, and 5 electrons?•What is the charge of an atom with 9 protons, 9neutrons, and 9 electrons?
    • 34. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons? +2• What is the weight of an atom with 5 protons, 5neutrons, and 5 electrons?•What is the charge of an atom with 9 protons, 9neutrons, and 9 electrons?
    • 35. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons? +2• What is the weight of an atom with 5 protons, 5neutrons, and 5 electrons? 10•What is the charge of an atom with 9 protons, 9neutrons, and 9 electrons?
    • 36. Atomic Weight and Charge Practice Problems•What is the charge of an atom that has 2 protonsand 2 neutrons? +2• What is the weight of an atom with 5 protons, 5neutrons, and 5 electrons? 10•What is the charge of an atom with 9 protons, 9neutrons, and 9 electrons? 0
    • 37. Ways of drawing atoms Even though drawings are different represent same things!!
    • 38. Ways of drawing atoms Even though drawings are different represent same things!!
    • 39. Ways of drawing atoms Even though drawings are different represent same things!!
    • 40. Ways of drawing atoms Even though drawings are different represent same things!!
    • 41. Ways of drawing atoms Even though drawings are different represent same things!!
    • 42. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus
    • 43. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons
    • 44. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons
    • 45. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons
    • 46. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons
    • 47. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons
    • 48. Ways of drawing atoms Even though drawings are different represent same things!! Nucleus Electrons Orbitals
    • 49. A Closer Look at the Electron Cloud *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 50. A Closer Look at the Electron Cloud *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 51. A Closer Look at the Electron Cloud•Electrons travel in orbitals *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 52. A Closer Look at the Electron Cloud•Electrons travel in orbitals•Orbitals (circles around nucleus) can carry differentamount of electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 53. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1:Can carry up to 2 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 54. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1:Can carry up to 2 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 55. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1:Can carry up to 2 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 56. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1: Orbital 2:Can carry up to can carry up 2 electrons to 8 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 57. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1: Orbital 2:Can carry up to can carry up 2 electrons to 8 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 58. A Closer Look at the Electron Cloud •Electrons travel in orbitals •Orbitals (circles around nucleus) can carry different amount of electrons Orbital 1: Orbital 2:Can carry up to can carry up 2 electrons to 8 electrons *Fill orbitals from inside to out *Orbital 3 also holds 8
    • 59. What is an element?Atoms come in different types (because thenumber of protons, neutrons, and electronschange)element- a substance that cannot bebroken down chemically and all atoms in itare the sameExamples : Copper, Oxygen, Hydrogen
    • 60. Atomic Orbital Practice Problems
    • 61. Atomic Orbital Practice Problems•Draw how 6 electrons would go in the orbitals?
    • 62. Atomic Orbital Practice Problems•Draw how 6 electrons would go in the orbitals?•Draw how 4 electrons would go in the orbitals?