Chemistry - Atomic structure/ periodic table

Chemistry - Atomic structure/ periodic table

1. A pure substance contains only one element or compound

2. An ion is a charged particle formed when an atom loses or gains electrons

3. Filtration is used to separate an insoluble solid from a liquid

4. Chromatography is used to separate things like inks

5. Compound - two or more elements chemically bonded together

6. Distillation is used to separate a soluble from a solution

7. Crystalisation is used to separate a soluble from a liquid

8. Distillation is used to separate a liquid from a mixture of liquids

9. JJ Thompson - plum pudding model

10. Rutherford - nuclear model

11. Bohr - protons

12. Chadwick - neutrons