C1 - Atomic Structure Flashcards
1
Q
What is an impure substance?
A
A substance that contains more than one type of element or compound in a mixture
2
Q
Is mixture separation a physical or chemical change?
A
Physical change
3
Q
What does distillation separate?
A
Liquids with different boiling points
4
Q
What does chromatography identify?
A
Substances of different solubility
5
Q
What is the radius of an atom?
A
1x10^-10 m
6
Q
What is the radius of an atom’s nucleus in comparison to the atom?
A
10,000 times smaller
7
Q
A
