General
chemistry
, Periodic table unreactive
a
base
reactive
every
-> colorless
&reactive but extremely
active
less
3
yellow gas
v
becomes
reactive >green "
poisones
more your
8
as
the
90gr0u0 form people
->
v
*
=
I
p
e
Cognito # I
becomes
less reactive
as go down
the
group
one
elements then
no
-bc of
in same nom
electrons in
sex.groups are
of
outer sh.
Samreoreeee outermostshell diffenedin
-
& O
group
1
L >full outer
non-metal
3 u 6 &
group
5
shell
2 ↓
in order to be
2
stable
2n m
d ↑ ①
·
D
peri
If the lives
sepa and
metal
↑sition the I
non-meta
metals
group
(metals- left)
ex. -> in order to be positive, "ca" has to loose Ibe ithas 2 on shell.
the outer
butCI has 7e in the outer shell, so it has to loose I
↓
non-metals
this is why are
negative.
, ·
etalS non-metals
form ion
+
when react [caf*sex.)
eitherdont formion
↓ become reactive going to thebottom
is be of
the
more
more shells. ·
and
so it's hard for the element inside to hold on to the outer
shells a so itcan more easily loose at and become +
(physical properties -> Britle easily breaks (balem vcul
->
metallic
bonding (very strong
-> malleable (sckilledirilebilir)
-> Low melting and boiling point
-> Aull in color.
-> conductors ofheat
-> lower density than metals. (weigh less
-> High melting and boiling point
-> poor conductors of electricity
#ali
metals L
opposite of normal metals
·
soft, low density, low melting point
more reactile than others.
down
become more reactive
theromelting and boiling pointdecrease
react
* Alkalimetal A28 + > metal hydroxide H gas
+
2Na 2 H20 +
< [NaOH+ He
*
(ID:Cognito
transition metals
67
· can form more than one ion -> 1cr(, [ar53 cars
(blue) (green) lorange)
· hale colours.
·
They are catalysts substances thatincrease rate ofa
chemical reaction.