Part 02 covalent bonding and covalent compounds
Download
1 / 14

Part 02 Covalent Bonding and Covalent Compounds - PowerPoint PPT Presentation


  • 202 Views
  • Uploaded on

Part 02 Covalent Bonding and Covalent Compounds. 1. Covalent Bonding - two or more non metals - two or more semi metals - share at least one pair of valence electrons - all the atoms get a stable octet or in the case of hydrogen, a duet

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Part 02 Covalent Bonding and Covalent Compounds' - garrison-tillman


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Part 02 covalent bonding and covalent compounds

Part 02Covalent BondingandCovalent Compounds


1. Covalent Bonding

- two or more nonmetals

- two or more semimetals

- share at least one pair of valence electrons

- all the atoms get a stable octet

or in the case of hydrogen, a duet

- a molecule is formed. The sharing of valence electrons holds the atoms together


2. Covalent Bonding Between Like Atoms:

The Diatomic Molecules

H

H

Lewis Dot Diagram

- shared pair belongs to both atoms

- each atom has a stable duet


H

H

Structural Diagram

- dash represents one shared pair of valence electrons

- a single covalent bond

- formula, H20

- no charges, no electrons lost or gained

- name, dihydrogen, or just hydrogen

- shape or molecular geometry, linear


Lewis Dot Diagram

F

F

- shared pair belongs to both atoms

- each atom has a stable octet


Nonbonding electrons

F

F

Structural Diagram

Bonding electrons

- a single covalent bond

- formula, F20

- no charges, no electrons lost or gained

- name, difluorine, or just fluorine

- shape or molecular geometry, linear


Nonbonding electrons

I

I

Structural Diagram

Bonding electrons

- all the other halogens bond the same way

- Cl2, Br2, I2 all with no charge


O

O

O

O

No octets!

Unpaired electrons!

O

O

Lewis Dot Diagram


O

O

Structural Diagram

- two dashes are two shared pairs of electrons, i.e., four electrons

- a double covalent bond

- all the other electrons are nonbonding electrons


O

O

Structural Diagram

- formula, O20

- no charge, no electrons lost or gained

- name, dioxygen or just oxygen

- shape or molecular geometry, linear


N

N

N

N

N

N

No octets!

Unpaired electrons!

N

N

No octets!

Unpaired electrons!

Lewis Dot Diagram


N

N

Structural Diagram

- three dashes are three shared pairs of electrons, i.e., six electrons

- a triple covalent bond

- all the other electrons are nonbonding electrons


N

N

Structural Diagram

- formula, N20

- no charge, no electrons lost or gained

- name, dinitrogen or nitrogen

- shape or molecular geometry, linear


3. Summary: The Diatomic Molecules

a. Single Covalent Bonds

1) Hydrogen, H2

2) Fluorine, F2

3) Chlorine, Cl2

4) Bromine, Br2

4) Iodine, I2

b. Double Bond, Oxygen, O2

c. Triple Bond, Nitrogen N2

Assignment: Read p236-240


ad