Калај

50
Sn
Група
14
Периода
5
блок
p
Protons
Electrons
Neutrons
50
50
69
Општи Својства
Атомски број
50
Атомска тежина
118,71
Mass Number
119
Category
Слаб метал
Color
Silver
Radioactive
Не
The Latin word for tin is stannum
Кристална структура
Централно тетрагонално
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.
Electrons per shell
2, 8, 18, 18, 4
Електронска конфигурација
[Kr] 4d10 5s2 5p2
Sn
When a bar of tin is bent, a crackling sound known as the tin cry can be heard
Физички Својства
Фаза
Solid
Густина
7,287 g/cm3
Точка на топење
505,08 K | 231,93 °C | 449,47 °F
Точка на вриење
2875,15 K | 2602 °C | 4715,6 °F
Топлина на топење
7 kJ/mol
Топлина на испарување
290 kJ/mol
Specific Heat Capacity
0,228 J/g·K
Abundance in Earth's crust
0,00022%
Abundance in Universe
4×10-7%
Droplet
Кредити на слика: Images-of-elements
Droplet of solidified molten tin
CAS Number
7440-31-5
PubChem CID Number
5352426
Атомски Својства
Атомски полупречник
140 pm
Ковалентен полупречник
139 pm
Електронегативност
1,96 (Полингова скала)
Ionization Potential
7,3439 eV
Atomic Volume
16,3 cm3/mol
Thermal Conductivity
0,666 W/cm·K
Oxidation States
-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
Isotopes
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