Свойства

CAS Number7440-72-4
PubChem CIDna
Атомный радиус-
Атомный объем29,1
Атомный вес[257]
Блокf
Температура кипения-
Bulk Modulus
КатегорияАктиниды
Кристаллическая структура
Цвет
Ковалентный радиус-
Плотность-
Electrical Resistivity
Электронная конфигурация[Rn] 5f12 7s2
Электронов на оболочку2, 8, 18, 32, 30, 8, 2
Электроотрицательность1,3
Electrons100
Группаna
Теплота плавленияna
Теплота парообразованияna
Ионизационный потенциал6,5
Magnetic Ordering
Magnetic Susceptibility
Масса[257]
Mass Number100
Температура плавления1 527
ИмяФермий
Нейтроны157
Атомный номер257
Состояния окисления2, 3
Период7
ФазаТвердое тело
Poisson Ratio
Протоны100
Shear Modulus
Удельная теплоемкость-
СимволFm
Теплопроводность0,1
Van der Waals radius
Young's Modulus
Избыток
Избыток на Землеna
Избыток во Вселеннойna
Fm Фермий 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"

Изотопы висмута

Standard Atomic Weight

Стабильные изотопы

Нестабильные изотопы

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.