Cambridge International
AS Level
Chapter 2: Atomic Structure
CIE AS Chemistry
, 2.1 Particles in the Atom
Contain sub-atomic particles
Electrons, e-
negative charge; occupies around nucleus in
electron shells
Proton, p
positive charge; found in nucleus
Neutron, n
Also found in nucleus with no charge
CIE AS Chemistry
, 2.1 Particles in the Atom
–
Nucleus Electron
+
+ Electron
Shell
Neutron
-
Proton
CIE AS Chemistry
AS Level
Chapter 2: Atomic Structure
CIE AS Chemistry
, 2.1 Particles in the Atom
Contain sub-atomic particles
Electrons, e-
negative charge; occupies around nucleus in
electron shells
Proton, p
positive charge; found in nucleus
Neutron, n
Also found in nucleus with no charge
CIE AS Chemistry
, 2.1 Particles in the Atom
–
Nucleus Electron
+
+ Electron
Shell
Neutron
-
Proton
CIE AS Chemistry