59  Praseodymium

 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      

+--------------------+
| 59  ____           |
|    |  _ \ _ __     |
|    | |_) | '__|    |
|    |  __/| |       |
|    |_|   |_|       |
|                    |
|    Praseodymium    |
|     140.90766 u    |
+--------------------+

Electron Configuration: [Xe]6s2 4f3
Electronegativity:      1.13
Atomic Radius:          239 pm
Ionization Energy:      5.464 eV
Electron Affinity:      
Oxidation States:       3
Standard State:         Solid
Melting Point:          1204 K
Boiling Point:          3793 K
Density:                6.77 g/cm3
Family:                 Lanthanide
Year Discovered:        1885
Number of Neutrons:     82
Number of Protons:      59
Number of Electrons:    59
Number of Valence:      
Valency:                
Group:                  
Period:                 6
Shell:                  f-shell
Specific Heat:          0.193 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 Dying low-mass stars
Source:                 Merging neutron stars