CHE 102 Chapter Notes - Chapter 1: Subatomic Particle, Atomic Number, Anode Ray
Document Summary
Part 1: a law is the description of an observes phenomenon. It does not explain why it exists or what causes it. Theory is the explanation of the phenomenon: considering the context of atom theory, a good example of a law and an accompanying theory would be, antonie lavoisier"s law of conservation of mass. Part 2: thomson observed that when a voltage is applied the anode rays move from cathode to anode. In conclusion, the rays have particle-like properties: the charge of an electron is negative. The famous experiment that provided the data to calculate this value is rutherford"s gold foil experiment. This experiment concluded that an atom consists of positively charged region called the nucleus with negative charges surrounding it. c) If the mass to charge ratio and the charge of an electron is know, the charge of the proton can also be determined.
