Good Afternoon! My name is Ernest Rutherford, and I was the first to discover something magnificent about the atom!
I also discovered that electrons have a negative charge that rotate around the nucleus.
I discovered that atoms contain a small charged positive nucleus enclosed by an enormous amount of empty space.
So how did I discover all of this? Well, in 1908 I invented an experiment using light particles and a sheet of gold foil to try and figure out the atoms structure. I finished my experiment in 1913 after lots of hard work, and am proud to have accomplished it!
The grey cube is a lead box and the green sphere inside, is the source [radium]. The purple line is filled with light particles, and the yellow square is the gold foil. There is also a detecting screen around the outside that shows where the particles landed.
The light particles were shot through the foil and almost all of them went through or turned at an angle, but 1 out of 8,000 particles deflected off the detecting screen.
In my conclusion I stated that the atom must be mostly made up of empty space and a compact area of positive charge in the middle. I knew it was positive because it deflected the positively charged particles
In between the nucleus and electrons there is a large amount of empty space
This is my model of the atom. The nucleus is positive and is located in the middle. The negative electrons rotate around the nucleus. .
There you have it. That was my atomic theory of the atom!