36  Krypton

 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      

+--------------------+
| 36   _  __         |
|     | |/ /_ __     |
|     | ' /| '__|    |
|     | . \| |       |
|     |_|\_\_|       |
|                    |
|       Krypton      |
|       83.80 u      |
+--------------------+

Electron Configuration: [Ar]4s2 3d10 4p6
Electronegativity:      3
Atomic Radius:          202 pm
Ionization Energy:      14.000 eV
Electron Affinity:      
Oxidation States:       0
Standard State:         Gas
Melting Point:          115.79 K
Boiling Point:          119.93 K
Density:                0.003733 g/cm3
Family:                 Noble gas
Year Discovered:        1898
Number of Neutrons:     48
Number of Protons:      36
Number of Electrons:    36
Number of Valence:      8
Valency:                0
Group:                  18
Period:                 4
Shell:                  p-shell
Specific Heat:          0.248 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 Dying high-mass stars