Kobber
29
Cu
Gruppe
11
Periode
4
Blok
d
Protoner
Elektroner
Neutroner
29
29
35
Generelle Egenskaber
Atomnummer
29
Atommasse
63,546
Masseantal
64
Kategori
Overgangsmetaller
Farve
Kobber
Radioaktiv
Nej
From the Latin word cuprum, from the island of Cyprus
Krystalstruktur
Fladecentreret Kubisk
Historie
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.
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 i hver skal
2, 8, 18, 1
Elektronkonfiguration
[Ar] 3d10 4s1
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Fysiske Egenskaber
Tilstandsform
Fast stof
Massefylde
8,96 g/cm3
Smeltepunkt
1357,75 K | 1084,6 °C | 1984,28 °F
Kogepunkt
2835,15 K | 2562 °C | 4643,6 °F
Smeltevarme
13,1 kJ/mol
Fordampningsvarme
300 kJ/mol
Varmefylde
0,385 J/g·K
Forekomst i jordskorpen
0,0068%
Forekomst i universet
6×10-6%
CAS-nummer
7440-50-8
PubChem CID-nummer
23978
Atomare egenskaber
Atomradius
128 pm
Kovalent radius
132 pm
Elektronegativitet
1,9 (Paulings skala)
Ioniseringspotentiale
7,7264 eV
Atomvolumen
7,1 cm3/mol
Varmeledningsevne
4,01 W/cm·K
Oxidationstrin
1, 2, 3, 4
Anvendelser
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.
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
Stabile isotoper
63Cu, 65CuUstabile 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