Not until around 1910 when Ernest Rutherford doubted the already existing atomic model.
Rutherford was not convinced about the model of the atom
proposed by Thomson. He thus set up his now famous Gold Foil
Experiment.
1. He fired alpha particles (positively charged) at a gold
foil.😮
2. He measured the deflection as the particles came out
the other side.🤥
3. Most of the particles did not deflect at all.
Every now and then a particle would deflect
all the way back.🤔
4. He said that there must be a positive centre of
the foil. He called this centre the nucleus🙄.
Let's look at what he got from his experiment.
RUTHERFORD’S ATOMIC MODEL (AKA THE PLANETARY MODEL)
1. The nucleus of the atom is a dense mass of positively
charged particles.
2. The electrons orbit the nucleus
3. A problem raised was: Why are the negatively
charged particles not attracted by the positively charged
nucleus🤔
4. Rutherford stated that the atom was like a mini solar system and that the
electrons orbited the nucleus in a wide orbit. That is why it is known as
the planetary model.
Hmm. My guy called it planetory model cause it looked like a planet according to him o.🤗🤗🤗
People accepted his idea until another cute guy arose to modify his result. Let's live that for (0.5) next post.
By: Oshinowo Testimony
Antimony
Comments