特性

CAS Number7440-72-4
PubChem CIDna
原子半径-
モル体積29.1
原子量[257]
ブロックf
沸点-
Bulk Modulus
カテゴリアクチノイド
結晶構造
共有結合半径-
密度-
Electrical Resistivity
電子配置[Rn] 5f12 7s2
電子殻2, 8, 18, 32, 30, 8, 2
電気陰性度1.3
Electrons100
na
融解熱na
蒸発熱na
イオン化エネルギー6.5
Magnetic Ordering
Magnetic Susceptibility
質量[257]
Mass Number100
融点1,527
名称フェルミウム
中性子157
原子番号257
酸化数2, 3
周期7
固体
Poisson Ratio
陽子100
Shear Modulus
熱容量-
記号Fm
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
Fm フェルミウム 100 (257) 7 f 100 [Rn] 5f12 7s2 2 8 18 32 30 8 2 None Unknown 1.3 {"1":"627"} 627 3 10.0 1 100.5 d 145.02d AlphaEmission Actinide, Radioactive, Synthetic FER-mi-em Synthetic radioactive metal. It has no significant commercial applications. Produced by bombarding lighter transuranium elements with still lighter particles or by neutron capture. SQhI52sqanA Fermium
Bismuth has been known since ancient times, so no one person is credited with its discovery.

The element was confused in early times with tin and lead because of its resemblance to those elements.

In 1753, French chemist Claude François Geoffroy demonstrated that this metal is distinct from lead and tin. From the German Weisse Masse, meaning white mass 100 1952 Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA. USA Named after "Enrico Fermi"

ビスマスの同位体

Standard Atomic Weight

安定同位体

不安定同位体

242Fm 243Fm 244Fm 245Fm 246Fm 247Fm 248Fm 249Fm 250Fm 251Fm 252Fm 253Fm 254Fm 255Fm 256Fm 257Fm 258Fm 259Fm 260Fm

Bismuth is considered to be non-toxic
Bismuth has unusually high electrical resistance for a metal
Bismuth is used in producing malleable irons and is used as a catalyst for making acrylic fibers.

Bismuth oxychloride is used in cosmetics, as a pigment in paint for eye shadows, hair sprays and nail polishes.

It has also been used as a replacement for lead in shot, bullets and less-lethal riot gun ammunition.