Statistics for Modern Elements of the Periodic Table - Hard

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Year Discovered	Symbol	Answer	% Correct
1898	Ra	Radium	100%
1894	Ar	Argon	93%
1895	He	Helium	93%
1898	Kr	Krypton	93%
1898	Ne	Neon	93%
1898	Po	Polonium	93%
1900	Rn	Radon	93%
1898	Xe	Xenon	93%
1939	Fr	Francium	86%
1886	Ge	Germanium	86%
1940	Pu	Plutonium	86%
1944	Am	Americium	79%
1950	Cf	Californium	79%
1952	Es	Einsteinium	79%
1866	F	Fluorine	79%
1875	Ga	Gallium	79%
1878	Sc	Scandium	79%
1878	Yb	Ytterbium	79%
1899	Ac	Actinium	71%
1944	Cm	Curium	71%
1886	Dy	Dysprosium	71%
1901	Eu	Europium	71%
1952	Fm	Fermium	71%
1880	Gd	Gadolinium	71%
1878	Ho	Holmium	71%
1907	Lu	Lutetium	71%
1940	Np	Neptunium	71%
1937	Tc	Technetium	71%
1949	Bk	Berkelium	64%
1923	Hf	Hafnium	64%
1885	Nd	Neodymium	64%
1945	Pm	Promethium	64%
1925	Re	Rhenium	64%
1940	At	Astatine	57%
1955	Md	Mendelevium	57%
1958	No	Nobelium	57%
1885	Pr	Praseodymium	57%
1917	Pa	Protactinium	57%
1879	Sm	Samarium	57%
1879	Tm	Thulium	43%