特性

CAS Number7440-55-3
PubChem CID5360835
原子半径135
モル体積11.8
原子量69.723
ブロックp
沸点2,204
Bulk Modulus
カテゴリ卑金属
結晶構造底心 斜方晶系
銀色
共有結合半径122
密度5.907
Electrical Resistivity
電子配置[Ar] 3d10 4s2 4p1
電子殻2, 8, 18, 3
電気陰性度1.81
Electrons31
13
融解熱5.59
蒸発熱256
イオン化エネルギー5.999
Magnetic Ordering
Magnetic Susceptibility
質量69.723
Mass Number31
融点29.76
名称ガリウム
中性子39
原子番号70
酸化数1, 2, 3
周期4
固体
Poisson Ratio
陽子31
Shear Modulus
熱容量0.371
記号Ga
熱伝導率0.406
Van der Waals radius
Young's Modulus
天然存在比
地殻中における存在比0.0019%
宇宙空間における存在比1×10-6%
Ga ガリウム 31 69.723 13 4 p 31 29.8 2403.0 [Ar] 3d10 4s2 4p1 2 8 18 3 5.9 0.0019% Silver Orthorhombic 1.8 1.756 {"1":"578.8","2":"1979.3","3":"2963","4":"6180"} 579 28.9 126 3 1.41 11.8 5.59 256.06 0.371 40.6 0 Solid, Diamagnetic, Conductor, Metal, Stable, Natural, PoorMetal GAL-i-em Soft, blue-white metal. Used in semiconductor production. It us used in making LEDs (light-emitting diodes) and GaAs laser diodes. Found throughout the crust in minerals like bauxite, germanite and coal. N6ccRvKKwZQ Gallium
Calcium was known as early as the first century when the Ancient Romans prepared lime as calcium oxide.

Calcium was first isolated by Sir Humphry Davy in 1808 when he electrolyzed a mixture of lime and mercuric oxide.

Davy was trying to isolate calcium; when he heard that Jöns Jakob Berzelius and Pontin prepared calcium amalgam by electrolyzing lime in mercury, he tried it himself. From the Latin word calx, lime 31 1875 Paul-Emile Lecoq de Boisbaudran France From the Latin word "Gallia" meaning "France" and perhaps also from the Latin word "gallus"

カルシウムの同位体

Standard Atomic Weight

69.723(1)

安定同位体

69Ga 71Ga

不安定同位体

56Ga 57Ga 58Ga 59Ga 60Ga 61Ga 62Ga 63Ga 64Ga 65Ga 66Ga 67Ga 68Ga 70Ga 72Ga 73Ga 74Ga 75Ga 76Ga 77Ga 78Ga 79Ga 80Ga 81Ga 82Ga 83Ga 84Ga 85Ga 86Ga

Calcium is considered to be non-toxic
The shell of an egg is made up of primarily calcium carbonate
Calcium is used to remove oxygen, sulfur and carbon from alloys.

It is also used as an alloying agent used in the production of aluminum, beryllium, copper, lead, and magnesium alloys.

Calcium is used as a reducing agent in the extraction of other metals, such as uranium, zirconium, and thorium.

Calcium carbonate is used in manufacturing cement and mortar, lime and limestone.