TEXT 17 Cl Chlorine (plaintext)
       
        H                                                  He
        Li Be                               B  C  N  O  F  Ne
        Na Mg                               Al Si P  S [Cl]Ar
        K  Ca Sc Ti V  Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
        Rb Sr Y  Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I  Xe
        Cs Ba La Hf Ta W  Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
        Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
                                                             
              Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu      
              Th Pa U  Np Pu Am Cm Bk Cf Es Fm Md No Lr      
       
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       +--------------------+
       | 17     ____ _      |
       |       / ___| |     |
       |      | |   | |     |
       |      | |___| |     |
       |       \____|_|     |
       |                    |
       |      Chlorine      |
       |       35.45 u      |
       +--------------------+
       
  TEXT Wiki Article:           Chlorine
       Electron Configuration: [Ne]3s2 3p5
       Electronegativity:      3.16
       Atomic Radius:          175 pm
       Ionization Energy:      12.968 eV
       Electron Affinity:      3.617 eV
       Oxidation States:       +7, +5, +1, -1
       Standard State:         Gas
       Melting Point:          171.65 K
       Boiling Point:          239.11 K
       Density:                0.003214 g/cm3
   DIR Family:                 Halogen
       Year Discovered:        1774
       Number of Neutrons:     18
       Number of Protons:      17
       Number of Electrons:    17
       Number of Valence:      7
       Valency:                1
       Group:                  17
       Period:                 3
   DIR Shell:                  p-shell
       Specific Heat:          0.479 J/g K
       Radioactive:            0
       Occurrence:             Natural
   DIR Source:                 Dying high-mass stars