Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

NOVA Online (see text links below)
Fireworks!  
On Fire
Chemistry Basics
Back to Shuffle Atoms

In this feature, molecules are depicted in two ways. Methane, for example, is written out as CH4. This shows that the molecule consists of one atom of carbon and four atoms of hydrogen. The molecule is also expressed as one "C" and 4 "H's" connected by lines...

Basics

These depictions of CH4 and CO2 show the bonds that hold the atoms together. A single line indicates that two atoms share one pair of electrons. A double line indicates that two atoms share two pairs of electrons.

Back to Shuffle Atoms



Printer-Friendly Format   Feedback

Name That Shell | Anatomy of a Firework | Pyrotechnically Speaking | On Fire
Resources | Transcript | Teacher's Guide | Site Map | Fireworks! Home

Search | Site Map | Previously Featured | Schedule | Feedback | Teachers | Shop
Join Us/E-Mail | About NOVA | Editor's Picks | Watch NOVAs online | To print
PBS Online | NOVA Online | WGBH

© | Updated January 2002
 

Support provided by

For new content
visit the redesigned
NOVA site

Shop Teachers Feedback Schedule Previously Featured Site Map Search NOVA Home Site Map Fireworks! Home