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
Electron Configuration: [Kr]5s2 4d10 5p6
Electronegativity: 2.6
Atomic Radius: 216 pm
Ionization Energy: 12.130 eV
Electron Affinity:
Oxidation States: 0
Standard State: Gas
Melting Point: 161.36 K
Boiling Point: 165.03 K
Density: 0.005887 g/cm3
Family: Noble gas
Year Discovered: 1898
Number of Neutrons: 77
Number of Protons: 54
Number of Electrons: 54
Number of Valence: 8
Valency: 0
Group: 18
Period: 5
Shell: p-shell
Specific Heat: 0.158 J/g K
Radioactive: 0
Occurrence: Natural
Source: Merging neutron stars