Theories

Question 1

Daltons Atomic Theory

Answer 1

1. All matter is made up of tiny particles (atoms) that can’t be destroyed. *
2. Atoms of one element can’t be converted into another element. *
3. All atoms of one element have the same properties. These are different from any other element.
4. Atoms of different elements can be combined to make compounds.

Question 2

JJ Thompson

Answer 2

1. Thought atoms were made from different particles combined.
2. Studied and used electric currents with gas discharged tubes called cathode ray tubes that struck the zinc sulphate coating.
3. Applied magnetic field and electric fields.
4. Found that negative charge are electrons.
5. Raisin bun model. (Positive sphere with negative charge in it).
6. Found that opposite charges attract.