خواص

CAS Number7440-72-4
PubChem CIDna
شعاع اتمی-
حجم اتمی۲۹٫۱
عدد جرمی[257]
بلوکf
نقطه جوش-
Bulk Modulus
دستهاکتینیدها
ساختار کریستالی
رنگ
شعاع کووالانسی-
چگالی-
Electrical Resistivity
ساختار الکترونی[Rn] 5f12 7s2
الکترون های هر لایه2, 8, 18, 32, 30, 8, 2
الکترونگاتیویته۱٫۳
Electrons100
گروهna
گرمای همجوشیna
گرمای تبخیرna
پتانسیل یونیزاسیون۶٫۵
Magnetic Ordering
Magnetic Susceptibility
جرم[257]
Mass Number100
نقطه ذوب۱٬۵۲۷
نامفرمیم
نوترون ها157
عدد اتمی257
حالات اکسید شدن2, 3
تناوب7
جنسجامد
Poisson Ratio
پروتون ها100
Shear Modulus
ظرفیت گرمایی ویژه-
نمادFm
رسانایی گرما۰٫۱
Van der Waals radius
Young's Modulus
فراوانی
فراوانی در پوسته زمینna
فراوانی در جهانna
Fm فرمیم 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"

ایزوتوپ‌های بیسموت

Standard Atomic Weight

ایزوتوپ های پایدار

ایزوتوپ های ناپایدار

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.