Baker
29
Cu
Skupina
11
Perioda
4
Blok
d
Protoni
Elektroni
Nevtroni
29
29
35
Splošne lastnosti
Vrstno število
29
Atomska teža
63,546
Masno število
64
Kategorija
Prehodne kovine
Barva
Bakrena
Radioaktivno
Ne
From the Latin word cuprum, from the island of Cyprus
Kristalna struktura
Ploskovno centrirana kubična
Zgodovina
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.
Elektroni po lupinah
2, 8, 18, 1
Razporeditev elektronov
[Ar] 3d10 4s1
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
8,96 g/cm3
Tališče
1357,75 K | 1084,6 °C | 1984,28 °F
Vrelišče
2835,15 K | 2562 °C | 4643,6 °F
Talilna toplota
13,1 kJ/mol
Izparilna toplota
300 kJ/mol
Toplotna kapaciteta
0,385 J/g·K
Zastopanost v Zemljini skorji
0,0068%
Zastopanost v vesolju
6×10-6%
CAS številka
7440-50-8
PubChem CID številka
23978
Atomske lastnosti
Atomski polmer
128 pm
Kovalentni polmer
132 pm
Elektronegativnost
1,9 (Paulingova lestvica)
Ionizacijski potencial
7,7264 eV
Atomski volumen
7,1 cm3/mol
Toplotna prevodnost
4,01 W/cm·K
Oksidacijska stanja
1, 2, 3, 4
Uporabe
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
Izotopi
Stabilni izotopi
63Cu, 65CuNestabilni izotopi
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