8/33/24
Periodic Law
-
elm w/ similar properties lined up
Groups
-
metals : Conduct heat/electricity ,
Malleable, ductile ,
Often shiny ,
tend to lose ecations ,
transition metals
-
generally the left side
-
Group IA : alk metals
-
reactive, lose le , form +1 cations
,
I vale-
,
form all (basic) solutions in H2O
-
ey : na = nat + e-
,
na + Hz0 + 120H +
Hz ,
a ,
Ive Tve Sve
Zve 3 ve Suc bre
↳ very exothermic, reactive
-
Group 2A : alk earth metals
-
reactive, lose ze-
My+ My + H20
-
-
ey: My >
-
+ ze
,
+
My20H)z + Hz
- metalloids
-
mixed properties semiconductors
,
-
101-Metals
-
variable properties , poor conductors ,
gaine to b roble gas
-
generally on night side
-
covalently band
-
Group >A : Habyens
- reactive non metals , guin let ,
have 7 vale so want octet
Cl > Cl-
- -
-
eg : + e
,
Fz , Cle , Bre ,
12
↳ exist as diatomic molecules be it makes actet
-
Group 8t : Noble gasses
bonds
-
non reactive , don't like forming chemical be alr have octet
-
He , Me ,
Ar, Kr , Xe , R
Bonding
- Ionic = electr static attraction between opp charges
-
cation (+ ) /anion (-)
↳ metals/nonmetals
-
eg Kir
-
evalent =
sharing of e-
-
eyHCl-H ..: * Most elm form octet but It wants a duet (2et
H - :
* things on left bond w right , things on right bond wright
↳ is nic ↳ covalent
Periodic Law
-
elm w/ similar properties lined up
Groups
-
metals : Conduct heat/electricity ,
Malleable, ductile ,
Often shiny ,
tend to lose ecations ,
transition metals
-
generally the left side
-
Group IA : alk metals
-
reactive, lose le , form +1 cations
,
I vale-
,
form all (basic) solutions in H2O
-
ey : na = nat + e-
,
na + Hz0 + 120H +
Hz ,
a ,
Ive Tve Sve
Zve 3 ve Suc bre
↳ very exothermic, reactive
-
Group 2A : alk earth metals
-
reactive, lose ze-
My+ My + H20
-
-
ey: My >
-
+ ze
,
+
My20H)z + Hz
- metalloids
-
mixed properties semiconductors
,
-
101-Metals
-
variable properties , poor conductors ,
gaine to b roble gas
-
generally on night side
-
covalently band
-
Group >A : Habyens
- reactive non metals , guin let ,
have 7 vale so want octet
Cl > Cl-
- -
-
eg : + e
,
Fz , Cle , Bre ,
12
↳ exist as diatomic molecules be it makes actet
-
Group 8t : Noble gasses
bonds
-
non reactive , don't like forming chemical be alr have octet
-
He , Me ,
Ar, Kr , Xe , R
Bonding
- Ionic = electr static attraction between opp charges
-
cation (+ ) /anion (-)
↳ metals/nonmetals
-
eg Kir
-
evalent =
sharing of e-
-
eyHCl-H ..: * Most elm form octet but It wants a duet (2et
H - :
* things on left bond w right , things on right bond wright
↳ is nic ↳ covalent
