Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Uni
t
1:
The
Per
iodi
c Tabl
e
T he per
iodi
c t
a bl
e cont
ains
a bout
a hundred
or
so
elemen t
s t
hat have
been curr
en t
ly
discover
e d .
The r
ow s a r e
k nown as
pe r
iods
and
eleme nts
of
the
same
period
have
the
sa me numbe r
of
el
e ct
ron
sh el
ls.…read more

Page 3

Preview of page 3

Here's a taster:

N eutr
ons do n 't
have a c har
g e.
A n atom consist
s of
a n ucl
e us,
w hich
co n t
a i
ns
p r
o tons an d
neut rons
and some el
ectron
she l
l
s which
surround
t he
nu cl
eus and conta i
n el
ectrons .
The n eu t
rons
h o wever ,
ar
e d if
ferent
.…read more

Page 4

Preview of page 4

Here's a taster:

Isotopes
T he numb er
of
neutrons
in
an at
om can vary
sl
ightl
y.
For
examp l
e ,
t
he r
e a re t
hree
kinds of
car
bo n
atom,
ca l
l
e d
c arbon 12,
carbon13
and car
bon 14.
They al
l
ha ve
the
same
nu mbe r
of
p rotons,
but
the
numb er
o f
neut
rons var
y.…read more

Page 5

Preview of page 5

Here's a taster:

NonMetals
N on met
als
tend
to
be bri
tt
le.
They
are
poor
conduct
o r
s of
heat
and
elect
ri
ci
ty.
They
for
m aci
dic
oxi
des
and
are
g ood
oxydi
si
n g
agents
because t
hey gai
n el
ect
rons.
Aluminium Oxide
Al
umi
nium
oxi
de
is
amphot
eri
c.
It
can
neut
ral
iz
e
bot
h an
aci
d and
a base.…read more

Page 6

Preview of page 6

Here's a taster:

C )
Li
thi
um 181 1342 0.
53
Sodi
um 98 883 0.
97
Pot
assi
um 63 760 0.
86
Rubi
dium 39 686 1.
53
Fr
anci
um 29 669 1.
88
Y ou
can see
that
as
reacti
vit
y i
ncreases,
t
he melt
ing
and
boil
i
n g
point
s decr
ea ses how ever
,
densit
y i
ncreases.
T hese
point
s ar
e ver
y l
ow
for
me t
als.…read more

Page 7

Preview of page 7

Here's a taster:

T he
re acti
o n
is
so vi
olen t
it c an b e e x plosive.
Wh en l
i
t ,
Ru bidi
um f
o r
ms
a red
fl
ame and
C aesi
u m f
orms
a
blue
f l
ame .…read more

Page 8

Preview of page 8

Here's a taster:

H arde r
than
g roup one
me t
als
T wo e l
ectrons on o ut
er
shell
(
2 + charge)
F or
m w hi
te o xi
des
F or
ms
h ydr
o xides and hydr
oge n
w hen
react
ing
w i
th
w at
er.…read more

Page 9

Preview of page 9

Here's a taster:

F indi
ng
th e r
ea ct
ivi
ty of h al
og ens ar e
do ne by
r ea ct
ing
the
eleme nts
w i
th pot
a ssi
um hali
de s.
C ol
our chan ge
w i
l
l
in di
cate
a
reacti
on.
N o t
e:
C olo ur
chang es a re du e to
the el
e me nt
b eing di
s placed .…read more

Page 10

Preview of page 10

Here's a taster:

S o i
n t
his
exa mple,
H C l
i
s an
ac id
b ecau s e
it
donates a
proton
(the hydr
oge n
ion)
t
o
w at
er.
S o t
he real
di
ffer
en ces? Hyd r
og en chl
or i
d e
is NOT
an aci
d
and i
s a gas.
Hydrochlor
ic
acid
is an aqueous
sol
u t
ion
o f
hydrogen chl
oride.…read more

Comments

tishnish

It is excellent, but some of the information is unnecessary

Similar Chemistry resources:

See all Chemistry resources »See all resources »