C3d Group 1 Elements Question Higher

C3d Group 1 Elements Question Higher Paper

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  • Created on: 05-05-12 09:33
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C1dH i
g he r
onl
y:
1.C omplete
the ba l
anced symb ol
eq uat
ion
for
the
reacti
on of
an al
kali
metal
w i
th
w a t
er
e .
g:
2 N a
+ 2H2O
2 NaO H +
H 2
(
t
h e
other
alkal
i
me tal
s r
ea ct
i
n
a si
milar
wa y,
you
ne ed
to
practi
ce one of
t
w o
of
t
he se)
2.D escr
ibe how t
h e al
ka l
i
me t
a l
s react
wit
h water
as you
go top
dow n
in gr
ou p
1:
(
s elect
f
rom Fizz es
viol
entl
y Fizzes
quickl
y
explodes Fizzes
fur
iousl
y
The group 1 O b ser
vati
ons when
the
me tal
i
s Colour
of t
he
metal added t
o water
uni
versal
indi
cator
added
to
the
wa t
er
Lit
hium Fi
zz es
slowly
Sod i
um
Potassium
Ru bi
dium
Ca esi
um
3.C omplete
the properti
es of
rubidi
um and
caesium, by
fol
lowing
the
rest
o f
t
he
p att
ern,
sho wn b y
the
rest
of the
alkal
i
me t
a l
s,
i
n
the
tabl
e :
Group 1 me tal
Me l
ti
ng poi
nt

C )
Hardness
Lit
hium 181 Fai
rl
y hard
Sod i
um 98 Fai
rl
y sof
t
Potassium 64 Sof
t
Ru bi
dium 39
Ca esi
um 29
4.Al
kali
metal
s have
simil
ar
propert
ies
because
w hen
they
react,
an
atom l
oses
one
elect
ron
to
form a
posit
ive
ion
w i
th
a st
able
elect
roni
c st
ruct
ure.
For
example
sodi
um at
oms
w i
l
l
lose
one
elect
ron
to
become
sod i
um ion:
1 +
Na
1e
Na
5.Wri
te
a si
mil
ar
equat
ion
to
show t
he
for
mat
ion
of
an
ion
of
anot
her
gr
oup
1
met
al:
6.The
mo r
e r
eact
i
ve t
he al
kal
i
metal
t
he
easi
er
it
f
or
an at
om t
o l
ose one
elect
ron.
So,
pot
assi
um l
oses
an el
ect
ron
most
easi
l
y t
han sodi
um and
li
t
h i
um.
Loss
of
elect
rons
is
oxi
dati
on.
G ai
n of
el
ect
rons i
s
reduct
i
o n.
(
you
can
r
eme mber t
his
by
using
the
acronym OILRIG).
Ther
efor
e t
he
above
process
of
for
ming
sodi
um
ion
is
oxi
dat
ion.
7.Expl
ain
w hy
a pr
ocess
is
oxi
dat
ion
fr
om
it
s i
oni
c equat
ion.

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