C1.Atomic structure Flashcards
1
Q
What is an atom made up of?
A
Protons, neutrons and electrons
2
Q
What is the charge and mass of each one?
A
Proton : +1 and 1
Neutron : 0 and 1
Electron : -1 and 1/2000
3
Q
What is in the centre of an atom?
A
A nucleus consisting of a proton and neutron
4
Q
What determines the element?
A
The number of protons
5
Q
What is a mixture?
A
2 or more substances not chemically combined together
6
Q
What are the 4 types of techniques to separate mixtures?
A
-Filtration
-Crystallisation
-Distillation
-Chromatography
7
Q
What is Filtration?
A
8
Q
What is Crystallisation?
A
9
Q
What is Distillation and what are the two types?
A
Simple :
Fractional :
10
Q
What is chromatography used for?
A
