Свойства

CAS Number7440-35-9
PubChem CIDna
Атомный радиус173
Атомный объем17,78
Атомный вес[243]
Блокf
Температура кипения2 607
Bulk Modulus
КатегорияАктиниды
Кристаллическая структураПростой шестиугольник
ЦветСеребряный
Ковалентный радиус180
Плотность13,69
Electrical Resistivity
Электронная конфигурация[Rn] 5f7 7s2
Электронов на оболочку2, 8, 18, 32, 25, 8, 2
Электроотрицательность1,3
Electrons95
Группаna
Теплота плавленияna
Теплота парообразованияna
Ионизационный потенциал5,974
Magnetic Ordering
Magnetic Susceptibility
Масса[243]
Mass Number95
Температура плавления1 176
ИмяАмериций
Нейтроны148
Атомный номер243
Состояния окисления2, 3, 4, 5, 6
Период7
ФазаТвердое тело
Poisson Ratio
Протоны95
Shear Modulus
Удельная теплоемкость-
СимволAm
Теплопроводность0,1
Van der Waals radius
Young's Modulus
Избыток
Избыток на Землеna
Избыток во Вселеннойna
Am Америций 95 (243) 7 f 95 994.0 2607.0 [Rn] 5f7 7s2 2 8 18 32 25 8 2 13.7 None Silver Hexagonal 1.3 {"1":"578"} 578 +3,4,5,6 1.84 20.8 10.0 1 7388 y 1.065×104y AlphaEmission Solid, Actinide, Radioactive, Synthetic am-er-ISH-i-em Silvery-white, artificially produced radioactive metal. Americium-241 is currently used in smoke detectors. Produced by bombarding plutonium with neutrons. PB38NyjmneE Americium
Gold has been known since prehistoric times and was the first metal used by humans.

Gold artifacts dated to 5000 years ago have been found in Egyptian tombs.

Gold of 98% purity has been found in Nahal Qunah in the ancient kingdom of Israel, dating from about 6000 years ago. From the Latin word aurum meaning gold 95 1944 Glenn Seaborg, Ralph James., L. Morgan, Albert Ghiorso USA From the English word "America"

Изотопы золота

Standard Atomic Weight

Стабильные изотопы

Нестабильные изотопы

231Am 232Am 233Am 234Am 235Am 236Am 237Am 238Am 239Am 240Am 241Am 242Am 243Am 244Am 245Am 246Am 247Am 248Am 249Am

Gold is considered to be non-toxic
India is the world's largest single consumer of gold
Gold is used in coinage and is a standard for monetary systems in many countries.

It is also extensively used for jewelry, decoration, dental work, and for plating.

Gold is used widely in microelectronic circuits to ensure reliable, corrosion-resistant and static-free performance.

Gold leaf, flake or dust is used in some gourmet foods as decorative ingredient.