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Element 50 - Tin (Sn)
An Old English word; symbol Sn from
stannum
, Latin for tin; prehistoric. Because it does not rust and resists corrosion, tin has made possible canned food.
Properties
Atomic Number
:
50
Atomic Weight
:
118.710
Electron Configuration
(at ground state):
1s
2
2s
2
2p
6
3s
2
3p
6
3d
10
4s
2
4p
6
4d
10
5s
2
5p
2
Oxidation States
(Bold most stable):
+2,
+4
Boiling Point
(K):
2876
Melting Point (K):
505.12
Density
(at 300K -- g/cm
3
):
7.31
Atomic Volume (at 300K -- cm
3
/mol)
16.30
Number of stable
isotopes
:
10
Mass Number
(Bold naturally occurring) --
Half-Life
--
Disintigration Type
:
121 -- 76 years --
beta particle
(
electron
) emission
Covalent Radius (Å):
1.41
Atomic Radius (Å):
1.62
First
Ionization Potential
(V):
7.344
Electronegativity
(Pauling's):
1.96
Specific Heat
Capacity (at 300K -- J g
-1
K
-1
):
0.228
Heat of Vaporization (kJ/mol):
290.37
Heat of Fusion (kJ/mol):
7.2
Electrical Conductivity (at 293K for polycrystalline material -- 10
6
-1
cm
-1
):
8.7
Thermal Conductivity (at 300K -- W m
-1
K
-1
):
66.6
Crystal Structure:
Tetragonal
Acid
-
Base
Properties:
Amphoteric