Submitted by ams on Sun, 04/15/2012 - 20:09
Submitted by ams on Sat, 04/14/2012 - 21:14
The Bohr model of the atom, developed in the early twentieth century, was an attempt to explain observations about the way atoms and electrons absorb, retain and release energy.
The electromagnetic spectrum
Submitted by ams on Fri, 03/16/2012 - 14:49
Beginning work on an illustration covering the relationship between the frequency