特性

CAS Number7440-40-6
PubChem CID23971
原子半径170
モル体積16.7
原子量[247]
ブロックf
沸点2,900
Bulk Modulus
カテゴリアクチノイド
結晶構造六方最密構造
共有結合半径-
密度14.78
Electrical Resistivity
電子配置[Rn] 5f9 7s2
電子殻2, 8, 18, 32, 27, 8, 2
電気陰性度1.3
Electrons97
na
融解熱na
蒸発熱na
イオン化エネルギー6.198
Magnetic Ordering
Magnetic Susceptibility
質量[247]
Mass Number97
融点986
名称バークリウム
中性子150
原子番号247
酸化数3, 4
周期7
固体
Poisson Ratio
陽子97
Shear Modulus
熱容量-
記号Bk
熱伝導率0.1
Van der Waals radius
Young's Modulus
天然存在比
地殻中における存在比na
宇宙空間における存在比na
Bk バークリウム 97 (247) 7 f 97 986.0 [Rn] 5f9 7s2 2 8 18 32 27 8 2 14.0 None Unknown 1.3 {"1":"601"} 601 +3,4 10.0 1 1379 y 1991.y AlphaEmission Solid, Actinide, Radioactive, Synthetic BURK-li-em Synthetic radioactive metal. It has no significant commercial applications. Some compounds have been made and studied. Made by bombarding americium with alpha particles. imXT9QwRzks Berkelium
Mercury was known to the ancient Chinese and Indians and has been found in Egyptian tombs dating back to about 1500 BC.

Alchemists thought of mercury as the First Matter from which all metals were formed.

They believed that different metals could be produced by varying the quality and quantity of sulfur contained within the mercury. From the Latin word hydrargyrum meaning liquid silver 97 1949 Glenn T. Seaborg, Stanley G. Thompson, Albert Ghiorso USA Named after "Berkeley", a city in California, home of the University of California, USA

水銀の同位体

Standard Atomic Weight

安定同位体

不安定同位体

235Bk 236Bk 237Bk 238Bk 239Bk 240Bk 241Bk 242Bk 243Bk 244Bk 245Bk 246Bk 247Bk 248Bk 249Bk 250Bk 251Bk 252Bk 253Bk 254Bk

Mercury and most of its compounds are highly toxic
Mercury is the only metal that is liquid at room temperature
Mercury is used in barometers and manometers because of its high density.

Gaseous mercury is used in mercury-vapor lamps and some 'neon sign' type advertising signs and fluorescent lamps.

Mercury is also found in liquid mirror telescopes.

Gaseous mercury is also found in some electron tubes, including ignitrons, thyratrons, and mercury arc rectifiers.