Tin

Tin Element Properties

p49
In
Indium
p50
Sn
Tin
p51
Sb
Antimony
General
NameTin
SymbolSn
Number50
Group Number14
GroupMetal, Carbon group
Blockp
Density7.30 g/cm3
Atomic Weight118.69 g/mol
Atomic Volume16.3 cm3/mol
DiscoverNone


States
StateSolid
Melting Point505.08 K
Boiling Point2875 K
Triple PointNil
Critical PointNil
Heat of Fusion7.03 kJ/mol
Heat of Vaporization296.1 kJ/mol


Energies
First Ionization Energy708.6 kJ/mole
Second Ionization Energy1411.8 kJ/mole
Third Ionization Energy2943 kJ/mole
Electronegativity1.88
Electron Affinity120 kJ/mole
Specific Heat0.227 J/gK
Heat Atomization302 kJ/mole atoms


Oxidation and Electrons
Shells2,8,18,18,4
Electron Configuration [Kr] 4d10 5s2 5p2
Minimum Oxidation Number-4
Maximum Oxidation Number4
Minimum Common Oxidation Number0
Maximum Common Oxidation Number4


Appearance and Characteristics
Crystal Structuretetragonal
Characteristicsresists corrosion 2 forms
Colorsilvery-white
Usessolder, pewter, bronze
Hardness1.65 mohs
ToxicityNone


Reactions
Reaction with Airmild, w/ht, =>SnO2
Reaction with 6M HClNone
Reaction with 15M HNO3mild, =>SnO2, NOx
Reaction with 6M NaOHmild, =>H2, [Sn(OH)6] 2-


Other Forms
Number of Isotopes10
HydrideSnH4 Sn2H6
OxideSnO SnO2
ChlorideSnCl2 SnCl4


Radius
Atomic Radius140.5 pm
Ionic Radius (1+ ion)Nil
Ionic Radius (1- ion)Nil
Ionic Radius (2+ ion)Nil
Ionic Radius (2- ion)Nil
Ionic Radius (3+ ion)Nil


Conductivity
Thermal Conductivity66.8 J/m-sec-deg
Electrical Conductivity90.909 1/mohm-cm
Polarizability7.7 A3


Abundance
SourceCassiterite (oxide)
Relation Abundance Solar System0.582 log
Abundance Earth's Crust0.3 log


p49
In
Indium
p50
Sn
Tin
p51
Sb
Antimony