M4 The Periodic Table: Halogens
Slide
33
of 45
Halogen
Trends
in
Reactivity
Going
Down
Group
7
•
HARDER
to
GAIN
LAST
OUTER
ELECTRON
•
So
LESS
CHEMICALLY
REACTIVE
F
Cl
L
E
S
S
R
E
A
C
T
I
V
E