C1 Atomic Structure

Question 1

What is an element?

Answer 1

A substance that is only made from one sort of atom

Question 2

What is a compound?

Answer 2

A combination of atoms of different elements

Question 3

What is a mixture?

Answer 3

Two or more elements and / or compounds

Question 4

Name the 3 steps of filtration

Answer 4

1. The mixture is poured into the funnel
2. Insoluble solids remain in the filter paper
3. Solutions and liquids go through into the flask

Question 5

Name the 3 steps of crystallisation

Answer 5

1. The solution is heated and crystals start to form
2. It is left in a warm place for the rest of the water to evaporate
3. Crystals form.

Question 6

Name the steps of paper chromotography

Answer 6

1. Draw a pencil line near the bottom of the paper
2. Add spots of the colourings to the line
3. Put the paper into a chromatography tank with a solvent at the bottom and below the line