29
Cu
11
周期
4
ブロック
d
陽子
電子
中性子
29
29
35
一般特性
原子番号
29
原子量
63.546
質量数
64
カテゴリ
遷移元素
赤銅色
放射性
いいえ
From the Latin word cuprum, from the island of Cyprus
結晶構造
面心立方格子
歴史
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.
電子殻
2, 8, 18, 1
電子配置
[Ar] 3d10 4s1
Cu
Pure copper is orange-red and acquires a reddish tarnish when exposed to air
物理特性
固体
密度
8.96 g/㎝3
融点
1357.75 K | 1084.6 °C | 1984.28 °F
沸点
2835.15 K | 2562 °C | 4643.6 °F
融解熱
13.1 kJ/mol
蒸発熱
300 kJ/mol
熱容量
0.385 J/g·K
地殻中における存在比
0.0068%
宇宙空間における存在比
6×10-6%
Macro
画像の出典: Wikimedia Commons (Jonathan Zander)
Macro of native copper
CAS登録番号
7440-50-8
PubChem CID Number
23978
原子特性
原子半径
128 pm
共有結合半径
132 pm
電気陰性度
1.9 (ポーリングの値)
イオン化エネルギー
7.7264 eV
モル体積
7.1 ㎝3/mol
熱伝導率
4.01 W/㎝·K
酸化数
1, 2, 3, 4
用途
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.
Cooking acidic food in copper pots can cause toxicity
同位体
安定同位体
63Cu, 65Cu
不安定同位体
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