Vlastnosti

CAS Number7440-72-4
PubChem CIDna
Atomový poloměr-
Molární objem29,1
Atomová hmotnost[257]
Blokf
Teplota varu-
Bulk Modulus
KategorieAktinoidy
Krystalografická soustava
Barva
Kovalentní poloměr-
Hustota-
Electrical Resistivity
Elektronová konfigurace[Rn] 5f12 7s2
Elektronů v obalu2, 8, 18, 32, 30, 8, 2
Elektronegativita1,3
Electrons100
Skupinana
Skupenské teplo tánína
Skupenské teplo varuna
Ionizační potenciál6,5
Magnetic Ordering
Magnetic Susceptibility
Hmotnost[257]
Mass Number100
Teplota tání1 527
NázevFermium
Neutrony157
Atomové číslo257
Oxidační čísla2, 3
Perioda7
SkupenstvíPevná
Poisson Ratio
Protony100
Shear Modulus
Měrná tepelná kapacita-
ZnačkaFm
Tepelná vodivost0,1
Van der Waals radius
Young's Modulus
Hojnost
Hojnost v zemské kůřena
Hojnost ve vesmíruna
Fm Fermium 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"

Izotopy bismutu

Standard Atomic Weight

Stabilní izotopy

Nestabilní izotopy

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

Bismut je považován za netoxický
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.