Tin

50
Sn
Gruppe
14
Periode
5
Blok
p
Protons
Electrons
Neutrons
50
50
69
General Properties
Atomnummer
50
Atommasse
118,71
Mass Number
119
Kategori
Post-overgangsmetaller
Farve
Silver
Radioactive
Nej
The Latin word for tin is stannum
Krystalstruktur
Rumcentreret Tetragonal
History
Tin was first smelted in combination with copper around 3500 BC to produce bronze.

The oldest artifacts date from around 2000 BC.

Cassiterite, the tin oxide form of tin, was most likely the original source of tin in ancient times.

British scientist Robert Boyle published a description of his experiments on the oxidation of tin in 1673.
Elektroner i hver skal
2, 8, 18, 18, 4
Elektronkonfiguration
[Kr] 4d10 5s2 5p2
Sn
When a bar of tin is bent, a crackling sound known as the tin cry can be heard
Physical Properties
Tilstandsform
Fast stof
Massefylde
7,287 g/cm3
Smeltepunkt
505,08 K | 231,93 °C | 449,47 °F
Kogepunkt
2875,15 K | 2602 °C | 4715,6 °F
Smeltevarme
7 kJ/mol
Fordampningsvarme
290 kJ/mol
Varmefylde
0,228 J/g·K
Abundance in Earth's crust
0,00022%
Abundance in Universe
4×10-7%
Droplet
Billede akkrediteringer: Images-of-elements
Droplet of solidified molten tin
CAS Number
7440-31-5
PubChem CID Number
5352426
Atomic Properties
Atomradius
140 pm
Kovalent radius
139 pm
Elektronegativitet
1,96 (Paulings skala)
Ionization Potential
7,3439 eV
Atomic Volume
16,3 cm3/mol
Varmeledningsevne
0,666 W/cm·K
Oxidationstrin
-4, 2, 4
Applications
Tin is used as a coating on the surface of other metals to prevent corrosion.

It has long been used as a solder in the form of an alloy with lead.

Tin salts sprayed onto glass are used to produce electrically conductive coatings.

Tin chloride is used as a mordant in dyeing textiles and for increasing the weight of silk.
Tin is considered to be non-toxic but most tin salts are toxic
Isotoper
Stable Isotopes
112Sn, 114Sn, 115Sn, 116Sn, 117Sn, 118Sn, 119Sn, 120Sn, 122Sn, 124Sn
Unstable Isotopes
99Sn, 100Sn, 101Sn, 102Sn, 103Sn, 104Sn, 105Sn, 106Sn, 107Sn, 108Sn, 109Sn, 110Sn, 111Sn, 113Sn, 121Sn, 123Sn, 125Sn, 126Sn, 127Sn, 128Sn, 129Sn, 130Sn, 131Sn, 132Sn, 133Sn, 134Sn, 135Sn, 136Sn, 137Sn