75  Rhenium

 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      

+--------------------+
| 75   ____          |
|     |  _ \ ___     |
|     | |_) / _ \    |
|     |  _ <  __/    |
|     |_| \_\___|    |
|                    |
|       Rhenium      |
|      186.207 u     |
+--------------------+

Electron Configuration: [Xe]6s2 4f14 5d5
Electronegativity:      1.9
Atomic Radius:          217 pm
Ionization Energy:      7.88 eV
Electron Affinity:      0.15 eV
Oxidation States:       +7, +6, +4
Standard State:         Solid
Melting Point:          3459 K
Boiling Point:          5869 K
Density:                20.8 g/cm3
Family:                 Transition metal
Year Discovered:        1925
Number of Neutrons:     111
Number of Protons:      75
Number of Electrons:    75
Number of Valence:      
Valency:                
Group:                  7
Period:                 6
Shell:                  d-shell
Specific Heat:          0.137 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 Merging neutron stars