C3e Group 7 Elements Question Foundation

C3e Group 7 Elements Question Foundation

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  • Created on: 03-05-12 07:25
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Item C3e:
The
G r
oup
7 El
ement
s
1. El
ement
s i
n gr
oup
7 ar
e cal
led
..
..
..
..
..
..
..
..
2. The
element
s i
n t
his
gr
oup
have
.......
.
elect
rons
on
thei
r
out
er
shel
ls
.
3. F.
..
..
..
..
..
..
..
.
,
C..
..
..
..
..
..
..
..
,
b.
..
..
..
..
..
..
..
.
and
i.
..
..
..
..
..
..
..
.
ar
e al
l
exampl
es
of
hal
ogens
.
4. St
ate t
he uses
of
these
hal
ogens
:
chl
ori
ne t
o s.
..
..
..
..
..
..
..
.
wat
er
chl
ori
ne i
s al
so
u s
e d
to
ma ke
p..
..
..
..
..
.. .
..
.
and
pl.
..
..
..
..
..
..
..
.
i
odine
is
used t
o s.
..
..
..
..
..
..
..
.
wounds.
5. St
ate t
hat
sodi
um ch l
ori
de i
s us ed
:
as
a p.
..
..
..
..
..
..
..
.
as
a f
..
..
..
..
..
..
..
..
t
o manufact
ure
c.. .
..
..
..
..
..
..
.
.
6. Halogens
react
wi
th
alkal
i
me t
als
and pr
oduc e
met
al
hal
ides.
For
exampl
e,
chl
ori
ne
react
s wi
th
sodi
um to
produce
s..
..
..
..
..
...
..
.
c.
..
..
..
..
..
..
..
.
.
7. Wr
it
e a
w or
d equat
ion
for
t
he
above
chemi
cal
r
eact
ion
:
8. Compl
ete
the
fol
lowi
ng
chemi
cal
r
eact
ions
:
i
) sodi
um
+ f
luor
ine
..
..
..
..
..
..
..
..
..
..
..
..
..
..
..
..
ii) .
..
..
..
..
..
..
..
.
+
iodi
ne
Pot
assi
um
i
o di
de
iii) Li
thi
um
+ .
..
..
..
..
..
..
..
.
l
i
thi
um
chl
ori
de
9. Mat
ch
of
the
fol
lowi
ng
hal
ogens
to
thei
r
desc
ript
ions
:
10. Rewrite the following halogens, in the order of reactivity. Lowest first
chlorine, fluorine, bromine and iodine.
11. Displacement reactions:

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If you add chlorine to the following compounds, in a test tube, what will
you observe?
i) potassium iodide ................
ii) Potassium bromide ................
iii) Write two word equations to describe the above two reactions
13. All the halogens have similar ................ properties, because they all have
7 outer shell electrons.…read more

Comments

lisa linsdell

Really good questions to aid the revision of this unit.  The answers can be downloaded in a separate document.

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