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33 As Arsenic (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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| 33 _ | |
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| Arsenic | |
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| 74.92159 u | |
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Wiki Article: Arsenic |
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Electron Configuration: [Ar]4s2 3d10 4p3 |
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Electronegativity: 2.18 |
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Atomic Radius: 185 pm |
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Ionization Energy: 9.815 eV |
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Electron Affinity: 0.81 eV |
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Oxidation States: +5, +3, -3 |
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Standard State: Solid |
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Melting Point: 1090 K |
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Boiling Point: 887 K |
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Density: 5.776 g/cm3 |
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Family: Metalloid |
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Year Discovered: Ancient |
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Number of Neutrons: 42 |
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Number of Protons: 33 |
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Number of Electrons: 33 |
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Number of Valence: 5 |
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Valency: 3 |
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Group: 15 |
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Period: 4 |
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Shell: p-shell |
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Specific Heat: 0.329 J/g K |
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Radioactive: 0 |
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Occurrence: Natural |
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Source: Dying high-mass stars |
