Chemistry_1031_day35_042209_actual

Chemistry_1031_day35_042209_actual - Dr. Jonathan M. Smith...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Dr. Jonathan M. Smith Wednesday, April 22 General Chemistry I CHE-1031 Today The Chemical bond! Ch. 9 Bond formation Types o Ionic o Covalent Pure Polar Lewis dot structures Read Chapter 9 Chemical Bonds!!! Chapter 9 Tro, Chemistry: A Molecular Approach 4 Bonding Theories explain how and why atoms attach together explain why some combinations of atoms are stable and others are not why is water H 2 O, not HO or H 3 O one of the simplest bonding theories was developed by G.N. Lewis and is called Lewis Theory Lewis Theory emphasizes valence electrons to explain bonding using Lewis Theory, we can draw models called Lewis structures that allow us to predict many properties of molecules aka Electron Dot Structures such as molecular shape, size, polarity Tro, Chemistry: A Molecular Approach 5 Why Do Atoms Bond? processes are spontaneous if they result in a system with lower potential energy chemical bonds form because they lower the potential energy between the charged particles that compose atoms Tro, Chemistry: A Molecular Approach 6 Potential Energy Between Charged Particles is a constant = 8.85 x 10-12 C 2 /Jm for charges with the same sign, E potential is + and the magnitude gets less positive as the particles get farther apart for charges with the opposite signs, E potential is - and the magnitude gets more negative as the particles get closer together remember: the more negative the potential energy, the more stable the system becomes Tro, Chemistry: A Molecular Approach 7 Potential Energy Between Charged Particles The repulsion between like- charged particles increases as the particles get closer together. To bring...
View Full Document

Page1 / 22

Chemistry_1031_day35_042209_actual - Dr. Jonathan M. Smith...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online