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CAS Number7440-51-9
PubChem CIDna
Атомен радиус174
Моларен обем18,28
Атомна маса[247]
Блокf
Температура на кипене3 110
Bulk Modulus
КатегорияАктиниди
Кристална структураОбикновен шестоъгълник
ЦвятСребърен
Ковалентен радиус169
Плътност13,51
Electrical Resistivity
Електронна конфигурация[Rn] 5f7 6d1 7s2
Електрон на обвивка2, 8, 18, 32, 25, 9, 2
Електроотрицателност1,3
Electrons96
Групаna
Топлина на сливанетоna
Топлина на изпаряванеna
Йонизационен потенциал5,992
Magnetic Ordering
Magnetic Susceptibility
Маса[247]
Mass Number96
Температура на топене1 340
ИмеКюрий
Неутрони151
Атомен номер247
Оксидационни държави3, 4
Период7
ФазаТвърди
Poisson Ratio
Протони96
Shear Modulus
Специфичен топлинен капацитет-
СимволCm
Топлопроводимост0,1
Van der Waals radius
Young's Modulus
Изобилие
Изобилие в земната кораna
Изобилие в вселенатаna
Cm Кюрий 96 (247) 7 f 96 1340.0 [Rn] 5f7 6d1 7s2 2 8 18 32 25 9 2 13.5 None Silver Hexagonal 1.3 {"1":"581"} 581 3 18.3 10.0 1 1.56×1077y AlphaEmission Solid, Actinide, Radioactive, Synthetic KYOOR-i-em Silvery, malleable, synthetic radioactive metal. It has no significant commercial applications. Made by bombarding plutonium with helium ions. So radioactive it glows in the dark. sZobqPFNcwg Curium
Carl Wilhelm Scheele obtained oxygen by heating mercuric oxide and nitrates in 1771, but did not publish his findings until 1777.

Joseph Priestley also prepared this new air by 1774.

The name oxygen was coined in 1777 by Antoine Lavoisier, whose experiments with oxygen helped to discredit the then-popular phlogiston theory of combustion and corrosion. From the Greek word oxys, acid, and genes, forming 96 1944 Glenn T. Seaborg, Ralph A. James, Albert Ghiorso USA Named after Pierre and Marie "Curie"

Isotopes of Oxygen

Standard Atomic Weight

Стабилни изотопи

Нестабилни изотопи

233Cm 234Cm 235Cm 236Cm 237Cm 238Cm 239Cm 240Cm 241Cm 242Cm 243Cm 244Cm 245Cm 246Cm 247Cm 248Cm 249Cm 250Cm 251Cm 252Cm

Oxygen gas can be toxic at elevated partial pressures, leading to convulsions and other health problems
Green and red colors in the Aurora Borealis are caused by oxygen atoms
Pure oxygen is frequently used to help breathing in patients with respiratory ailments.

Oxygen is used in oxyacetylene welding, as an oxidant for rocket fuel, and in methanol and ethylene oxide production.

It is also used in the production of steel, plastics and textiles.

Plants and animals rely on oxygen for respiration.