M4 The
Periodic Table: Halogens
Slide 32 of 45
Halogen Trends in Reactivity
Going Down Group 7
reactivity goes down.
reactivity goes down.
1) the + charged nucleus is further from the – charged electron
it wants to gain, so a weaker pull.
it wants to gain, so a weaker pull.
2) More electrons SHIELD the pull of the + charged nucleus from
– charged electron it wants.
– charged electron it wants.
F
Cl
L
E
S
S
R
E
A
C
T
I
V
E