01-31-2011 Lecture

01-31-2011 Lecture - Chemistry101 Chapter8...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 101 Chapter 8 Bonding: General Concepts
Background image of page 1

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

View Full DocumentRight Arrow Icon
What is a Chemical Bond? Chemical Bond: An attraction between atoms that holds those atoms together and causes them to act as a unit = Molecule But why do chemical bonds form at all? Bonds form between atoms if system lowers its total energy in the process. Therefore, bonding is driven by energetics of the system.
Background image of page 2
What is a Chemical Bond? Chemical Bond: An attraction between atoms that holds those atoms together and causes them to act as a unit = Molecule But why do chemical bonds form at all? Atoms in molecules try to achieve this kind of filled shell (Noble Gas) configuration Atoms that are most stable have a closed shell configuration (filled valence shell). Examples: He: 1s 2 2 valence electrons, filled shell duet Ne: 1s 2 2s 2 2p 6 8 valence electrons—known as octet 2s and 2p orbitals are completely filled
Background image of page 3

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

View Full DocumentRight Arrow Icon
Ionic Bonding: A bond between two oppositely charged ions (cation and anion). Forms from the interaction between an atom that has a relatively low ionization energy with another atom that has a high electron affinity. Ionic Bond
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/13/2011 for the course CHEM 101 taught by Professor Fitts during the Fall '08 term at UPenn.

Page1 / 13

01-31-2011 Lecture - Chemistry101 Chapter8...

This preview shows document pages 1 - 5. Sign up to view the full document.

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