chapter 10
DESCRIPTION
Chapter 10. Ionization Energy. A good number of transition metal elements possess an ability to have more than one positive ion. (Remember +2 is the most common oxidation number for metal ions). Mn +4. Mn +6. Mn. Mn +2. Mn +7. Demonstration. a. Mn. Demonstration. a. Mn. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/1.jpg)
Chapter 10
Ionization Energy
![Page 2: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/2.jpg)
A good number of transition metal elements possess an ability to have more than one positive ion. (Remember +2 is the most common oxidation number for metal ions)
Mn +2Mn Mn +4 Mn +6
Mn +7
![Page 3: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/3.jpg)
Demonstration
Mn
a
![Page 4: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/4.jpg)
Demonstration
Mn
a
![Page 5: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/5.jpg)
Ionization Energy
• Ionization energy is the energy needed to remove an electron from an atom or ion.
![Page 6: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/6.jpg)
First Ionization Energy
• First Ionization energy is the energy needed to remove the first electron from an atom.
![Page 7: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/7.jpg)
![Page 8: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/8.jpg)
![Page 9: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/9.jpg)
First Ionization Energy
• Francium has the lowest first ionization energy.
![Page 10: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/10.jpg)
How would you relate ionization energy to atomic size and effective
nuclear charge?
![Page 11: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/11.jpg)
How would you relate ionization energy to atomic size and effective
nuclear charge?
• Large atoms with low effective nuclear charge have low ionization energies.
• Small atoms with high effective nuclear charge have high ionization energies.
![Page 12: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/12.jpg)
Ionization Energy
First Ionization energy is the energy needed to remove the first electron from an atom.
Multiple Ionization Energies
Second Ionization energy is the energy needed to remove the second electron from an atom.
![Page 13: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/13.jpg)
Multiple Ionization Energies
• How many ionization energies does carbon have?
![Page 14: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/14.jpg)
Ionization Energies in kJ/mol
1 2 3 4 5 6 7
H 1312
He 2372 5250
Li 520 7297 11810
Be 899 1757 14845 21000
B 800 2426 3659 25020 32820
C 1086 2352 4619 6221 37820 47260
N 1402 2855 4576 7473 9442 53250 64340
![Page 15: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/15.jpg)
Multiple Ionization Energies
• What happens to carbon’s size and effective nuclear charge as you remove electrons?
![Page 16: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/16.jpg)
Teacher Demonstrations
• Sodium and water
• Potassium and water
![Page 17: Chapter 10](https://reader035.vdocuments.net/reader035/viewer/2022070402/56813815550346895d9fcaa4/html5/thumbnails/17.jpg)
Homework
• Ionization Energy Worksheet
• Do the Lab Summary for “Reactivity and the Periodic Table”