Vlastnosti

CAS Number7440-51-9
PubChem CIDna
Atomový poloměr174
Molární objem18,28
Atomová hmotnost[247]
Blokf
Teplota varu3 110
Bulk Modulus
KategorieAktinoidy
Krystalografická soustavaHexagonální
BarvaStříbrná
Kovalentní poloměr169
Hustota13,51
Electrical Resistivity
Elektronová konfigurace[Rn] 5f7 6d1 7s2
Elektronů v obalu2, 8, 18, 32, 25, 9, 2
Elektronegativita1,3
Electrons96
Skupinana
Skupenské teplo tánína
Skupenské teplo varuna
Ionizační potenciál5,992
Magnetic Ordering
Magnetic Susceptibility
Hmotnost[247]
Mass Number96
Teplota tání1 340
NázevCurium
Neutrony151
Atomové číslo247
Oxidační čísla3, 4
Perioda7
SkupenstvíPevná
Poisson Ratio
Protony96
Shear Modulus
Měrná tepelná kapacita-
ZnačkaCm
Tepelná vodivost0,1
Van der Waals radius
Young's Modulus
Hojnost
Hojnost v zemské kůřena
Hojnost ve vesmíruna
Cm Curium 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. Z řeckého slova oxys, kyselina, a genes, formování 96 1944 Glenn T. Seaborg, Ralph A. James, Albert Ghiorso USA Named after Pierre and Marie "Curie"

Izotopy kyslíku

Standard Atomic Weight

Stabilní izotopy

Nestabilní izotopy

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.