UTF-8
Excitation and deexcitation: Day 1, P1
Atoms can be excited
page 1 of 6
Light interacts with matter in many ways. For one thing, any material object -- even a gas -- can emit light if it gets hot enough. (An electric bulb shines because a tiny metal wire in it is heated to a temperature of several thousand degrees!) Also, matter can absorb light (that's why you can hide behind a tree -- the light coming from you gets absorbed by the tree so no one on the other side can see you). The ability of atoms to emit and absorb light has a lot to do with their ability to store energy and then re-emit it at a later time. When an atom stores energy if goes into an excited state and when it releases that energy it goes back into the ground state.
This should be a picture of an atom in several different states. We should be able to make one from the orbitals activity.
1
16
40.0
1
true16
40.0
1
16
40.0
1
16
40.0
16
truetrue16
16
truetrue16
16
truetrue16
true16
4.0
6.0
1
4.0
6.0
4.0
20.0
20.0
1
DVD%20Player(2).jpg
4.0
20.0
20.0
4.0
20.0
20.0
255 0 0
4.0
20.0
20.0
1
1
org.concord.modeler.text.LineIcon120.025101015<html><center><b><font face=Verdana size=4><a href="index.cml">Index</a></font></center></html>-ff0067
org.concord.modeler.text.LineIcon120.025101015<html><center><b><font face=Verdana size=4><a href="excitedstatePage1.cml">Next</a></font></center></html>-3367
11