Tembaga
29
Cu
Golongan
11
Periode
4
Blok
d
Proton
Elektron
Neutron
29
29
35
Sifat Umum
Nomor atom
29
Massa atom
63,546
Nomor massa
64
Kategori
Logam transisi
Warna
Tembaga
Radioaktif
Tidak
From the Latin word cuprum, from the island of Cyprus
Struktur kristal
Kubik Berpusat-muka
Sejarah
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.
Elektron per kulit
2, 8, 18, 1
Konfigurasi elektron
[Ar] 3d10 4s1
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
Sifat Fisika
Fase
Solid
Kepadatan
8,96 g/cm3
Titik lebur
1357,75 K | 1084,6 °C | 1984,28 °F
Titik didih
2835,15 K | 2562 °C | 4643,6 °F
Kalor peleburan
13,1 kJ/mol
Kalor penguapan
300 kJ/mol
Kapasitas kalor molar
0,385 J/g·K
Kelimpahan di kerak bumi
0,0068%
Kelimpahan di alam semesta
6×10-6%
Nomor CAS
7440-50-8
Nomor PubChem CID
23978
Sifat Atom
Jari-jari atom
128 pm
Jari-jari kovalen
132 pm
Elektronegativitas
1,9 (Skala Pauling)
Potensi Ionisasi
7,7264 eV
Volume atom
7,1 cm3/mol
Kondusivitas termal
4,01 W/cm·K
Bilangan oksidasi
1, 2, 3, 4
Aplikasi
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
Isotop
Isotop stabil
63Cu, 65CuIsotop tidak stabil
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