Zink

30
Zn
Gruppe
12
Periode
4
Blok
d
Protons
Electrons
Neutrons
30
30
35
General Properties
Atomnummer
30
Atommasse
65,38
Mass Number
65
Kategori
Overgangsmetaller
Farve
Slate Gray
Radioactive
Nej
From the German word Zink, of obscure origin
Krystalstruktur
Simpel Hexagonal
History
Metallic zinc was produced in the 13th century A.D. India by reducing calamine with organic substances such as wool.

The metal was rediscovered in Europe by Andreas Sigismund Marggraf in 1746.

He heated a mixture of calamine ore and carbon in a closed vessel without copper to produce the metal.
Elektroner i hver skal
2, 8, 18, 2
Elektronkonfiguration
[Ar] 3d10 4s2
Zn
Zinc is referred to in nonscientific contexts as spelter
Physical Properties
Tilstandsform
Fast stof
Massefylde
7,134 g/cm3
Smeltepunkt
692,68 K | 419,53 °C | 787,15 °F
Kogepunkt
1180,15 K | 907 °C | 1664,6 °F
Smeltevarme
7,35 kJ/mol
Fordampningsvarme
119 kJ/mol
Varmefylde
0,388 J/g·K
Abundance in Earth's crust
0,0078%
Abundance in Universe
0,00003%
A
Billede akkrediteringer: Images-of-elements
A sheet of zinc
CAS Number
7440-66-6
PubChem CID Number
23994
Atomic Properties
Atomradius
134 pm
Kovalent radius
122 pm
Elektronegativitet
1,65 (Paulings skala)
Ionization Potential
9,3942 eV
Atomic Volume
9,2 cm3/mol
Varmeledningsevne
1,16 W/cm·K
Oxidationstrin
1, 2
Applications
Because of its corrosion resistance, zinc is often plated to other metals in a process called galvanization.

Zinc is an essential trace element for animals and plants.

Large quantities of zinc are used to produce die castings, which are used extensively by the automotive, electrical, and hardware industries.
Zinc is not considered to be particularly toxic
Isotoper
Stable Isotopes
64Zn, 66Zn, 67Zn, 68Zn, 70Zn
Unstable Isotopes
54Zn, 55Zn, 56Zn, 57Zn, 58Zn, 59Zn, 60Zn, 61Zn, 62Zn, 63Zn, 65Zn, 69Zn, 71Zn, 72Zn, 73Zn, 74Zn, 75Zn, 76Zn, 77Zn, 78Zn, 79Zn, 80Zn, 81Zn, 82Zn, 83Zn