(TXT) 57 La Lanthanum (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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       | 57  _              |
       |    | |    __ _     |
       |    | |   / _` |    |
       |    | |__| (_| |    |
       |    |_____\__,_|    |
       |                    |
       |      Lanthanum     |
       |     138.9055 u     |
       +--------------------+
       
 (TXT) Wiki Article:           Lanthanum
       Electron Configuration: [Xe]6s2 5d1
       Electronegativity:      1.1
       Atomic Radius:          240 pm
       Ionization Energy:      5.577 eV
       Electron Affinity:      0.5 eV
       Oxidation States:       3
       Standard State:         Solid
       Melting Point:          1191 K
       Boiling Point:          3737 K
       Density:                6.15 g/cm3
 (DIR) Family:                 Lanthanide
       Year Discovered:        1839
       Number of Neutrons:     82
       Number of Protons:      57
       Number of Electrons:    57
       Number of Valence:      
       Valency:                
       Group:                  3
       Period:                 6
 (DIR) Shell:                  f-shell
       Specific Heat:          0.195 J/g K
       Radioactive:            0
       Occurrence:             Natural
 (DIR) Source:                 Dying low-mass stars
 (DIR) Source:                 Merging neutron stars