96 Curium 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 +--------------------+ | 96 ____ | | / ___|_ __ ___ | | | | | '_ ` _ \ | | | |___| | | | | | | | \____|_| |_| |_| | | | | Curium | | 247.07035 u | +--------------------+ Electron Configuration: [Rn]7s2 5f7 6d1 Electronegativity: 1.3 Atomic Radius: 245 pm Ionization Energy: 6.02 eV Electron Affinity: Oxidation States: 3 Standard State: Solid Melting Point: 1618 K Boiling Point: 3400 K Density: 13.51 g/cm3 Family: Actinide Year Discovered: 1944 Number of Neutrons: 151 Number of Protons: 96 Number of Electrons: 96 Number of Valence: Valency: Group: Period: 7 Shell: f-shell Specific Heat: Radioactive: 1 Occurrence: Rare Source: Human-made