Reference Article

from Wikipedia, the free encyclopedia

Lewis structure in chemistry

Lewis structures, also called electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule.

A Lewis structure can be drawn for any covalently-bonded molecule, as well as coordination compounds.

Lewis structures show each atom in the structure of the molecule using its chemical symbol.

Lines are drawn between atoms that are bonded to one another (rarely, pairs of dots are used instead of lines).

Excess electrons that form lone pairs are represented as pair of dots, and are placed next to the atoms on which they reside.

The Lewis structure for an individual atom is drawn by placing a dot around the atom for each valence electron available.

There are four positions available for dots to be placed; most chemists draw them on the top, left, bottom, and right of the atom.

Note: This article excerpts material from the Wikipedia article "Lewis structure in chemistry", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:

Related Videos

last updated on 2015-04-19 at 12:23 pm EDT

Raw: Deadly Massachusetts Jet Crash Site

Raw: Deadly Massachusetts Jet Crash Site

AP (June 2, 2014) The National Transportation Safety Board says it has recovered the cockpit voice recorder and flight data recorder from the private jet that crashed this weekend in Massachusetts, killing Philadelphia Inquirer co-owner Lewis Katz and six others. (June 2) Video provided by AP
Powered by
Paint Pigment Transformed to Work Wonders

Paint Pigment Transformed to Work Wonders

Reuters (Apr. 4, 2013) Titanium oxide, a chemical used as a pigment in paint and plastics, could also hold the secret to cleaner water and longer-lasting batteries. A scientist in Singapore has discovered that by manipulating its structure, the commonly-found chemical takes on extraordinary properties.
Powered by
Sagging Wisconsin Bridge Causes Detour of 40,000 Drivers Per Day

Sagging Wisconsin Bridge Causes Detour of 40,000 Drivers Per Day

Newsy (Sep. 26, 2013) The problem appears to be caused by a concrete support structure that settled, causing the road to sag.
Powered by
Washington Monument Reopens to Rave Reviews

Washington Monument Reopens to Rave Reviews

AP (May 12, 2014) The Washington Monument is reopening to the public, 33 months after an earthquake damaged the 130-year-old stone obelisk. After a morning ceremony, the 555-foot stone monument that was once the tallest structure in the world reopened Monday. (May 12) Video provided by AP
Powered by

Related Stories

Share This

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:
from the past week

In Other News

... from

Science News

Health News

Environment News

Technology News


Free Subscriptions

Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile

Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins