מאפיינים

CAS Number7440-51-9
PubChem CIDna
רדיוס אטומי174
Atomic Volume18.28
מסה אטומי[247]
חסוםf
נקודת רתיחה3,110
Bulk Modulus
קטגוריהאקטינידים
מבנה גבישיפשוט משושה
צבעכסף
רדיוס קוולנטי169
צפיפות החומר13.51
Electrical Resistivity
מבנה אלקטרוני[Rn] 5f7 6d1 7s2
Electrons per shell2, 8, 18, 32, 25, 9, 2
אלקטרושליליות1.3
Electrons96
קבוצהna
Heat of Fusionna
Heat of Vaporizationna
Ionization Potential5.992
Magnetic Ordering
Magnetic Susceptibility
מסה[247]
Mass Number96
נקודת התכה1,340
שםקיוריום
ניוטרונים151
מספר אטומי247
Oxidation States3, 4
מחזור7
פאזהמוצק
Poisson Ratio
פרוטונים96
Shear Modulus
קיבול חום סגולי-
סמל כימיCm
מוליכות חום0.1
Van der Waals radius
Young's Modulus
שכיחות
Abundance in Earth's crustna
Abundance in Universena
Cm קיוריום 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

איזוטופים יציבים

איזוטופים לא יציבים

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.