,↓
Hydrogen forms far more compound than anyother element
.
2
Similarity to alkali metal : Forms oxides ,
halides
,
sulphides and reactivity
"
"Halogens :
resemblance in IE
,
forms diatomic molewle ,
forms hydride
and large no - of covalent .
compound
.
3
Due to resemblance of both Alkali metal a
Halogen and non-resemblance of
both Keep it
makes H to separately in periodic table
.
4 occurance of
t most in (70 % of total
:
I is abundant element the universe
mass)
and principal element in solar atomosphere
Jupiter & Saturn is
majorly
h2
·
Due it earth gravity so 0 15 %
to
light mass escapes only
· .
,
by mass in earth atomosphere.
Combined
·
for 15 4 % .
of mass of earth crust and ocean
hydrogen
.
5
isotopes of : 3 isotopes
>
-
Protium H
>
-
Deuterium ?t (0v) D- Heavy hydrogen
>
- Tritium H
Harold Curey got nobel prize for Separating hydrogen isotope
·
of mass number 2
by physical method .
·
Predominant form Protium
Deuterium form of HD
·
-
0 0156 %
-
of terrestial hydrogen mostly in
·
Tritium -
One atom per 108 protium atoms -
·
Only milium is radioactive and emits 'ow
energy B particles
(ty2 - 12 33
.
yr)
, ·
all have same electronic config so same chemical properties
rate of reaction differ due to diff Bond
Only entral
Dy
.
·
in physical props these isotope differ considerably due to
their large mass difference .
.
6 Preparation of
42 :
i) Lab method :
2n + 2H + > In
&+
+
+2 /In with dil .
Hal)
2n + 2 NaOH >
NaznO2 + 12
Sodium
Zincate
ii) Commercial Production :
210 Electrolysis , Pt
electrodey 24
+
02
Traces of acid/base
·
high purity of 11799 .
95 % ) is obtained by electrolysing
warm
ag . Bacon Soln . blu Ni electrode
,
·
obtained as byproduct in manufacture of Naon and D2
at anode : zaial >
2
+ ze-
at cathode ze 201-
Ho
: + >
1 +
Reyn of HC
high temp
·
Steam on or loke at .
Cntan + 2
+
nH20
1220k
>n(0 + (2n + 1)12
Ni
Nowdd
1270K
Co 312
Chu + H20 Ni
> +
I I
Produce
used to
= water lov Syngas
an
S
methand GHC
Hydrogen forms far more compound than anyother element
.
2
Similarity to alkali metal : Forms oxides ,
halides
,
sulphides and reactivity
"
"Halogens :
resemblance in IE
,
forms diatomic molewle ,
forms hydride
and large no - of covalent .
compound
.
3
Due to resemblance of both Alkali metal a
Halogen and non-resemblance of
both Keep it
makes H to separately in periodic table
.
4 occurance of
t most in (70 % of total
:
I is abundant element the universe
mass)
and principal element in solar atomosphere
Jupiter & Saturn is
majorly
h2
·
Due it earth gravity so 0 15 %
to
light mass escapes only
· .
,
by mass in earth atomosphere.
Combined
·
for 15 4 % .
of mass of earth crust and ocean
hydrogen
.
5
isotopes of : 3 isotopes
>
-
Protium H
>
-
Deuterium ?t (0v) D- Heavy hydrogen
>
- Tritium H
Harold Curey got nobel prize for Separating hydrogen isotope
·
of mass number 2
by physical method .
·
Predominant form Protium
Deuterium form of HD
·
-
0 0156 %
-
of terrestial hydrogen mostly in
·
Tritium -
One atom per 108 protium atoms -
·
Only milium is radioactive and emits 'ow
energy B particles
(ty2 - 12 33
.
yr)
, ·
all have same electronic config so same chemical properties
rate of reaction differ due to diff Bond
Only entral
Dy
.
·
in physical props these isotope differ considerably due to
their large mass difference .
.
6 Preparation of
42 :
i) Lab method :
2n + 2H + > In
&+
+
+2 /In with dil .
Hal)
2n + 2 NaOH >
NaznO2 + 12
Sodium
Zincate
ii) Commercial Production :
210 Electrolysis , Pt
electrodey 24
+
02
Traces of acid/base
·
high purity of 11799 .
95 % ) is obtained by electrolysing
warm
ag . Bacon Soln . blu Ni electrode
,
·
obtained as byproduct in manufacture of Naon and D2
at anode : zaial >
2
+ ze-
at cathode ze 201-
Ho
: + >
1 +
Reyn of HC
high temp
·
Steam on or loke at .
Cntan + 2
+
nH20
1220k
>n(0 + (2n + 1)12
Ni
Nowdd
1270K
Co 312
Chu + H20 Ni
> +
I I
Produce
used to
= water lov Syngas
an
S
methand GHC
