Koper
29
Cu
Groep
11
Periode
4
Blok
d
Protrone
Elektrone
Neutrone
29
29
35
Algemene Eienskappe
Atoom Nommer
29
Atoommassa
63,546
Massa Nommer
64
Kategorie
Oorgangsmetale
Kleur
Koper
Radioaktief
Nee
From the Latin word cuprum, from the island of Cyprus
Kristalstruktuur
Gesiggesentreerde kubieke
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 1
Elektronkonfigurasie
[Ar] 3d10 4s1
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Fisiese Eienskappe
Fase
Soliede
Digtheid
8,96 g/cm3
Smeltpunt
1357,75 K | 1084,6 °C | 1984,28 °F
Kookpunt
2835,15 K | 2562 °C | 4643,6 °F
Heat of Fusion
13,1 kJ/mol
Heat of Vaporization
300 kJ/mol
Spesifieke Hitte Kapasiteit
0,385 J/g·K
Oorvloed in die aardkors
0,0068%
Oorvloed in die heelal
6×10-6%
CAS Nommer
7440-50-8
PubChem CID Nommer
23978
Atomiese Eienskappe
Atoom radius
128 pm
Kovalente Radius
132 pm
Elektronegatiewiteit
1,9 (Pauling scale)
Ionisasie potensiaal
7,7264 eV
Atoom volume
7,1 cm3/mol
Termiese geleidingsvermoë
4,01 W/cm·K
Oksidasiestate
1, 2, 3, 4
Toepassings
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
Isotope
Stabiele Isotope
63Cu, 65CuOnstabiele Isotope
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