特性

CAS Number7440-51-9
PubChem CIDna
原子半径174
モル体積18.28
原子量[247]
ブロックf
沸点3,110
Bulk Modulus
カテゴリアクチノイド
結晶構造六方最密構造
銀色
共有結合半径169
密度13.51
Electrical Resistivity
電子配置[Rn] 5f7 6d1 7s2
電子殻2, 8, 18, 32, 25, 9, 2
電気陰性度1.3
Electrons96
na
融解熱na
蒸発熱na
イオン化エネルギー5.992
Magnetic Ordering
Magnetic Susceptibility
質量[247]
Mass Number96
融点1,340
名称キュリウム
中性子151
原子番号247
酸化数3, 4
周期7
固体
Poisson Ratio
陽子96
Shear Modulus
熱容量-
記号Cm
熱伝導率0.1
Van der Waals radius
Young's Modulus
天然存在比
地殻中における存在比na
宇宙空間における存在比na
Cm キュリウム 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. 名前の由来は、ギリシャ語の oxys (酸) と genes (成形) を合わせた言葉です。 96 1944 Glenn T. Seaborg, Ralph A. James, Albert Ghiorso USA Named after Pierre and Marie "Curie"

酸素の同位体

Standard Atomic Weight

安定同位体

不安定同位体

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.