Actinium - Ac, Astatine - At, Berkelium - Bk, Bohrium - Bh, Californium - Cf, Curium - Cm, Darmstadtium - Ds, Dubnium - Db, Einsteinium - Es, Fermium - Fm, Francium - Fr, Gadolinium - Gd, Hafnium - Hf, Hassium - Hs, Indium - In, Lutetium - Lu, Meitnerium - Mt, Mendelevium - Md, Neptunium - Np, Nihonium - Nh, Protactinium - Pa, Promethium - Pm, Radium - Ra, Rhenium - Re, Roentgenium - Rg, Rutherfordium - Rf, Samarium - Sm, Technetium - Tc, Thulium - Tm, Ytterbium - Yb,

Hard Matching Elements

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