The gold foil experiment reveals that most of the mass of each atom is concentrated in a tiny center known as the atomic nucleus. Duration: 5:24
Mobile Link: http://bcove.me/ckjb3t8p
The atomic nucleus is shown to scale, as are the electrons. The result is that the atom is made of mostly empty space. The implications of this thought are explored. Duration: 4:26
Mobile Link: http://bcove.me/eyu8xvn5
Watch these additional videos to complete this tutorial.