Two Methods Which isotopes Binding Energy What holds an atom together Forces of Nature and Atomic Structure Band Island of Stability NZ ratio Number of stable isotopes Isotope trends among the elements ID: 724020
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Slide1
Nuclear Stability
Relative Stability of Different NucleiSlide2Slide3
Two Methods
Which isotopes?
Binding EnergySlide4
What holds an atom together?
Forces of Nature and Atomic Structure:Slide5
Band (Island) of Stability
N/Z ratio
Number of stable isotopesSlide6
Isotope trends among the elements:
http://kcvs.ca/isotopesmatter/iupacMaterials/javascript/Interactive%20Periodic%20Table%20of%20the%20Isotopes/HTML5/index.html
pdf:
http://ciaaw.org/pubs/Periodic_Table_Isotopes.pdfSlide7Slide8
Isotope trends among the elements:Slide9
Binding Energy, but first…
Comparing stability:
O-O single bond strength = 146 kJ/mol
O=O double bond strength = 496 kJ/mol
Which is more stable, O
2
or O
3
?
O
2
: O=O
O
3
: O=O-OSlide10Slide11Slide12
Predict what you think the trend will be:
As atomic number increases, what will happen to stability?Slide13
Split up class and do:Slide14
Do all isotopes using Excel
Isotopedata_stable.xlsSlide15Slide16Slide17Slide18Slide19Slide20Slide21
Modes of Radioactive DecaySlide22
U-238 Decay Series
And … the
problem with radon.Slide23Slide24
Decay modes and
the island of stability.Slide25