Chemistry

• Daltons model - Just a sphere (Billiard Ball Model)
• Rutherford made the nuclear model, which is a ball and rings around it
• Schrodinger and Heisenberg made the electron cloud model, which is just a ball with a cloud around it
• Thomson made the plum pudding model, which is a ball with protons and electrons randomly inside
• Bohr made the planetary model, which is a nucleus with various electron rings around it
• On the periodic table, vertical lines are groups
• On the periodic table, horizontal lines are called periods