Why does each element have its own unique spectral signature? how doe
emission lines and absorption lines arise? This lecture is the second
part of a two-part exploration of matter and light, looking at how the
unique spectral-line signatures of atoms are a reflection of their
internal electron energy-level structures. Topics include energy level
diagram ... Show More
Oct 2007
Lecture 23: Worlds Within - Atoms
What is ordinary matter made of? This lecture reviews the basic
properties of matter from subatomic to atomic scales, introducing atomic
structures, atomic number and chemical elements, isotopes,
radioactivity, and half-life, ending with a brief overview of the four
fundamental f ... Show More
41m 25s