Coure
29
Cu
Grup
11
Període
4
Bloc
d
Protons
Electrons
Neutrons
29
29
35
Propietats Generals
Nombre atòmic
29
Massa atòmica
63,546
Nombre de massa
64
Categoria
Metalls de transició
Color
Coure
Radioactiu
No
From the Latin word cuprum, from the island of Cyprus
Estructura cristal·lina
Cara cúbica centrada
Història
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.
Electrons per capa
2, 8, 18, 1
Configuració electrònica
[Ar] 3d10 4s1
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Propietats Físiques
Fase
Sòlid
Densitat
8,96 g/cm3
Punt de fusió
1357,75 K | 1084,6 °C | 1984,28 °F
Punt d'ebullició
2835,15 K | 2562 °C | 4643,6 °F
Entalpia de fusió
13,1 kJ/mol
Entalpia de vaporització
300 kJ/mol
Capacitat tèrmica específica
0,385 J/g·K
Abundància a l'escorça terrestre
0,0068%
Abundància a l'univers
6×10-6%
Número CAS
7440-50-8
Número CID de PubChem
23978
Propietats Atòmiques
Radi atòmic
128 pm
Radi covalent
132 pm
Electronegativitat
1,9 (Escala de Pauling)
Potencial d'ionització
7,7264 eV
Volum atòmic
7,1 cm3/mol
Conductivitat tèrmica
4,01 W/cm·K
Estats d'oxidació
1, 2, 3, 4
Aplicacions
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
Isòtops
Isòtops estables
63Cu, 65CuIsòtops inestables
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