Koppar

29
Cu
Grupp
11
Period
4
Block
d
Protoner
Electrons
Neutroner
29
29
35
Generella Egenskaper
Atomnummer
29
Atommassa
63,546
Mass Number
64
Kategori
Övergångsmetaller
Färg
Copper
Radioaktiv
Nej
From the Latin word cuprum, from the island of Cyprus
Kristallstruktur
Ytcentrerat kubiskt
Historia
Copper occurs naturally as native copper and was known to some of the oldest civilizations on record.

Earliest estimates of the discovery of copper suggest around 9000 BC in the Middle East.

It was one of the most important materials to humans throughout the copper and bronze ages.
Elektroner per skal
2, 8, 18, 1
Elektronkonfiguration
[Ar] 3d10 4s1
Cu
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Fysikaliska Egenskaper
Aggregationstillstånd
Fast
Densitet
8,96 g/cm3
Smältpunkt
1357,75 K | 1084,6 °C | 1984,28 °F
Kokpunkt
2835,15 K | 2562 °C | 4643,6 °F
Smältvärme
13,1 kJ/mol
Ångbildningsvärme
300 kJ/mol
Specifik värmekapacitet
0,385 J/g·K
Abundance in Earth's crust
0,0068%
Abundance in Universe
6×10-6%
Macro
Bildkrediter: Wikimedia Commons (Jonathan Zander)
Macro of native copper
CAS Number
7440-50-8
PubChem CID Number
23978
Atomära Egenskaper
Atomradie
128 pm
Kovalent radie
132 pm
Elektronegativitet
1,9 (Paulingskalan)
Jonisationspotential
7,7264 eV
Molvolym
7,1 cm3/mol
Värmeledningsförmåga
4,01 W/cm·K
Oxidationstillstånd
1, 2, 3, 4
Applications
Copper is often used for electrical wiring applications and for household plumbing applications.

Copper sulfate is used as a fungicide and as an algicide in rivers, lakes and ponds.

It is also used in cookware and cooking utensils.

Commercially important alloys such as brass and bronze are made with copper and other metals.
Cooking acidic food in copper pots can cause toxicity
Isotoper
Stabila isotoper
63Cu, 65Cu
Instabila isotoper
52Cu, 53Cu, 54Cu, 55Cu, 56Cu, 57Cu, 58Cu, 59Cu, 60Cu, 61Cu, 62Cu, 64Cu, 66Cu, 67Cu, 68Cu, 69Cu, 70Cu, 71Cu, 72Cu, 73Cu, 74Cu, 75Cu, 76Cu, 77Cu, 78Cu, 79Cu, 80Cu