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8 O Oxygen (plaintext) |
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H He |
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Li Be B C N [O ]F Ne |
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Na Mg Al Si P S Cl Ar |
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K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr |
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Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe |
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Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn |
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Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og |
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Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu |
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Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr |
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| 8 ___ | |
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| Oxygen | |
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| 15.999 u | |
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Wiki Article: Oxygen |
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Electron Configuration: [He]2s2 2p4 |
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Electronegativity: 3.44 |
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Atomic Radius: 152 pm |
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Ionization Energy: 13.618 eV |
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Electron Affinity: 1.461 eV |
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Oxidation States: -2 |
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Standard State: Gas |
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Melting Point: 54.36 K |
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Boiling Point: 90.2 K |
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Density: 0.001429 g/cm3 |
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Family: Nonmetal |
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Year Discovered: 1774 |
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Number of Neutrons: 8 |
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Number of Protons: 8 |
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Number of Electrons: 8 |
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Number of Valence: 6 |
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Valency: 2 |
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Group: 16 |
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Period: 2 |
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Shell: p-shell |
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Specific Heat: 0.918 J/g K |
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Radioactive: 0 |
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Occurrence: Natural |
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Source: Dying high-mass stars |
