Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
The Atomic Structure<br />
What is an Atom?<br />Atoms are the smallest particle of an element.<br />
What is an Element?<br />pure<br /><ul><li>An element is a ____ substance that cannot be _____up into 2 or more simpler su...
		       The Story of Atoms<br />Atoms have positive charges concentrated in their small nucleus!<br />There are neutrons!...
Bohr’s Atom<br />electrons in orbits<br />nucleus<br />http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/...
Structure of Atom<br />An atom consists mostly of empty space.<br />A positively charged nucleus, densely concentrated in ...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
Relative Charges & Relative Masses Of Protons, Neutrons & Electrons<br /><ul><li>When No. of proton = no. of electrons in ...
It is electrically neutral
It has no net charge. </li></li></ul><li>Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and ch...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
Interpreting Chemical Symbol<br />O<br />16<br />Mass=P+N<br />mass number<br />(nucleon number)<br />mass number is the t...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
Recap on Atomic Structure<br />Structure of atom<br />B.  	Relative masses and charges of proton, neutron and electron<br ...
The Electronic Configuration of Atoms<br />Mass number<br />(Nucleon)<br />O<br />16<br />O<br />8<br /> Atomic<br />numbe...
The Electronic Configuration of Atoms<br />Mg<br />
Summary for Atomic Structure (I) <br />The structure of an atom<br />The relative charges & relative masses of proton, neu...
Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
Today…<br />Isotopes<br />
Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
Activity<br />Find your fellow group members! (1min)<br />
Definition of Isotopes<br />Isotopes are atoms of the same element which contains the same number of protons but different...
Isotopes<br />mass number<br />O<br />O<br />17<br />O<br />18<br />16<br />proton number<br />8<br />8<br />8<br />Oxygen...
Isotopes<br />Isotopes  have the same chemical properties but slightly different physical properties<br />
Q. Do all Isotopes of the same element have the same mass?<br />
Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
Pair Work <br />
Uses of Radioactive Isotopes<br />Food irradiation<br />Archaeological dating (carbon-dating)<br />Smoke detectors<br />Ra...
Summary <br />Recap on Atomic Structure<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
Definition of Isotopes<br />Isotopes are atoms of the same element which contains the same number of protons but different...
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Atomic Structure Isotopes

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  • Pace;content; more interactiveHow many monomers to make polymer… molecular weight…Polymerisation does not only occur at high temperature… gas phase high presesure (polyethene)Dun generalize. High pressure for high density polymers… lower lower density.. Branched/unbranched…? Carbo, proteins n DNA are natural polymers… fats are not… C to C.. Cations to cathodesElectrolytes are salts mols that dissolve in water to ions that can conduct electrons..
  • Where in the atoms are these sub-atomic particles found?
  • Pace;content; more interactiveHow many monomers to make polymer… molecular weight…Polymerisation does not only occur at high temperature… gas phase high presesure (polyethene)Dun generalize. High pressure for high density polymers… lower lower density.. Branched/unbranched…? Carbo, proteins n DNA are natural polymers… fats are not… C to C.. Cations to cathodesElectrolytes are salts mols that dissolve in water to ions that can conduct electrons..
  • Atomic Structure Isotopes

    1. 1. Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
    2. 2. Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
    3. 3. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    4. 4. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    5. 5. The Atomic Structure<br />
    6. 6. What is an Atom?<br />Atoms are the smallest particle of an element.<br />
    7. 7. What is an Element?<br />pure<br /><ul><li>An element is a ____ substance that cannot be _____up into 2 or more simpler substances by chemical processes. </li></ul>spilt<br />
    8. 8. The Story of Atoms<br />Atoms have positive charges concentrated in their small nucleus!<br />There are neutrons!<br />Ernest Rutherford (1871 -1937)<br />Democritus 460 BC<br />Sir James Chadwick <br />(1891 -1974)<br />Joseph John Thompson (1856-1940)<br />Niels Bohr<br />(1885-1962)<br />ATOMA<br />PLUM PUDDING<br />MODEL<br />1898<br />
    9. 9. Bohr’s Atom<br />electrons in orbits<br />nucleus<br />http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/atom.swf<br />
    10. 10. Structure of Atom<br />An atom consists mostly of empty space.<br />A positively charged nucleus, densely concentrated in the centre. <br />The nucleus contains protons and neutrons, which are tightly packed.<br />Negatively charged electrons move around the nucleus in fixed orbits or paths.<br />10<br />
    11. 11. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    12. 12. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    13. 13. Relative Charges & Relative Masses Of Protons, Neutrons & Electrons<br /><ul><li>When No. of proton = no. of electrons in an atom
    14. 14. It is electrically neutral
    15. 15. It has no net charge. </li></li></ul><li>Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    16. 16. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    17. 17. Interpreting Chemical Symbol<br />O<br />16<br />Mass=P+N<br />mass number<br />(nucleon number)<br />mass number is the total number of protons and neutrons in an atom.<br />Number of neutrons in the oxygen atom is: 16 – 8 = 8.<br />chemical symbol<br />8<br />proton number<br />(atomic number)<br />atomic number (proton number) is the number of protons in an atom.<br />Each oxygen atom has 8 protons. <br />As the number of electrons is equal to the number of protons in an atom, each oxygen atom contains 8 electrons.<br />P=E<br />No. of protons= no. of electrons<br />16<br />
    18. 18. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    19. 19. Recap on Atomic Structure<br />Structure of atom<br />B. Relative masses and charges of proton, neutron and electron<br />C. Chemical symbols<br />D. Electronic configuration<br />
    20. 20. The Electronic Configuration of Atoms<br />Mass number<br />(Nucleon)<br />O<br />16<br />O<br />8<br /> Atomic<br />number<br />(Proton)<br />
    21. 21. The Electronic Configuration of Atoms<br />Mg<br />
    22. 22. Summary for Atomic Structure (I) <br />The structure of an atom<br />The relative charges & relative masses of proton, neutron & electron <br />Defined mass number & atomic number<br />Learnt how to interpret chemical symbols<br />The electronic configuration of atoms<br />
    23. 23. Lesson Objectives<br />1. Recap Atomic Structure<br />NEW<br />2. Isotopes<br />
    24. 24. Today…<br />Isotopes<br />
    25. 25. Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
    26. 26. Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
    27. 27. Activity<br />Find your fellow group members! (1min)<br />
    28. 28. Definition of Isotopes<br />Isotopes are atoms of the same element which contains the same number of protons but different number of neutrons.<br />Same P different n<br />
    29. 29. Isotopes<br />mass number<br />O<br />O<br />17<br />O<br />18<br />16<br />proton number<br />8<br />8<br />8<br />Oxygen-17<br />Oxygen-18<br />Oxygen-16<br />n = 8<br />n = 17 – 8<br /> = 9<br />n = 18 – 8<br /> = 10<br />
    30. 30. Isotopes<br />Isotopes have the same chemical properties but slightly different physical properties<br />
    31. 31. Q. Do all Isotopes of the same element have the same mass?<br />
    32. 32. Isotopes<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
    33. 33. Pair Work <br />
    34. 34. Uses of Radioactive Isotopes<br />Food irradiation<br />Archaeological dating (carbon-dating)<br />Smoke detectors<br />Radioactive tracers<br />
    35. 35. Summary <br />Recap on Atomic Structure<br />1. Definition of Isotopes<br />2. Uses of Isotopes<br />
    36. 36. Definition of Isotopes<br />Isotopes are atoms of the same element which contains the same number of protons but different number of neutrons.<br />Same P different n<br />
    37. 37. Quiz<br />http://chemistry.about.com/library/weekly/blionquiz.htm<br />

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