111  Roentgenium

 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      

+--------------------+
|111  ____           |
|    |  _ \ __ _     |
|    | |_) / _` |    |
|    |  _ < (_| |    |
|    |_| \_\__, |    |
|          |___/     |
|     Roentgenium    |
|      282.169 u     |
+--------------------+

Electron Configuration: [Rn]7s2 5f14 6d9 **
Electronegativity:      
Atomic Radius:          
Ionization Energy:      
Electron Affinity:      
Oxidation States:       5, 3, 1, -1
Standard State:         Solid **
Melting Point:          
Boiling Point:          
Density:                
Family:                 Transition metal
Year Discovered:        1994
Number of Neutrons:     161
Number of Protons:      111
Number of Electrons:    111
Number of Valence:      
Valency:                
Group:                  11
Period:                 7
Shell:                  d-shell
Specific Heat:          
Radioactive:            1
Occurrence:             Synthetic
Source:                 Human-made