| Element | Date | % Correct | |
|---|---|---|---|
| C | Copper | 9000 BC | 89%
|
| G | Gold | 6000 BC | 89%
|
| I | Iron | 5000 BC | 89%
|
| L | Lead | 7000 BC | 89%
|
| S | Silver | 5000 BC | 89%
|
| Z | Zinc | 1000 BC | 89%
|
| C | Carbon | 3750 BC | 78%
|
| M | Mercury | 1500 BC | 78%
|
| P | Platinum | 600 BC | 78%
|
| S | Sulfur | 2000 BC | 78%
|
| T | Tin | 3500 BC | 78%
|
| A | Antimony | 850 | 67%
|
| A | Arsenic | 850 | 67%
|
| N | Nitrogen | 1772 | 67%
|
| O | Oxygen | 1771 | 67%
|
| C | Cobalt | 1735 | 56%
|
| N | Nickel | 1751 | 56%
|
| E | Einsteinium | 1952 | 44%
|
| H | Hydrogen | 1766 | 44%
|
| P | Phosphorus | 1669 | 44%
|
| P | Plutonium | 1941 | 44%
|
| T | Tennessine | 2009 | 44%
|
| U | Uranium | 1789 | 44%
|
| X | Xenon | 1898 | 44%
|
| Z | Zirconium | 1808 | 44%
|
| A | Aluminum | 1808 | 33%
|
| B | Barium | 1808 | 33%
|
| B | Beryllium | 1808 | 33%
|
| C | Calcium | 1808 | 33%
|
| C | Curium | 1944 | 33%
|
| D | Darmstadtium | 1994 | 33%
|
| F | Flerovium | 1998 | 33%
|
| F | Francium | 1939 | 33%
|
| G | Gadolinium | 1880 | 33%
|
| H | Hassium | 1984 | 33%
|
| K | Krypton | 1898 | 33%
|
| L | Livermorium | 2000 | 33%
|
| M | Meitnerium | 1982 | 33%
|
| M | Moscovium | 2003 | 33%
|
| N | Neptunium | 1940 | 33%
|
| N | Nihonium | 2004 | 33%
|
| O | Oganesson | 2002 | 33%
|
| T | Tungsten | 1781 | 33%
|
| V | Vanadium | 1830 | 33%
|
| Y | Ytterbium | 1878 | 33%
|
| Y | Yttrium | 1808 | 33%
|
| A | Actinium | 1902 | 22%
|
| A | Americium | 1944 | 22%
|
| A | Argon | 1894 | 22%
|
| A | Astatine | 1940 | 22%
|
| B | Berkelium | 1949 | 22%
|
| B | Bismuth | 1753 | 22%
|
| B | Bohrium | 1981 | 22%
|
| B | Boron | 1808 | 22%
|
| C | Cadmium | 1817 | 22%
|
| C | Chromium | 1797 | 22%
|
| C | Copernicium | 1996 | 22%
|
| D | Dysprosium | 1886 | 22%
|
| E | Europium | 1896 | 22%
|
| F | Fermium | 1952 | 22%
|
| F | Fluorine | 1810 | 22%
|
| G | Germanium | 1886 | 22%
|
| H | Hafnium | 1922 | 22%
|
| I | Iodine | 1811 | 22%
|
| L | Lithium | 1817 | 22%
|
| M | Manganese | 1770* | 22%
|
| M | Mendelevium | 1955 | 22%
|
| N | Nobelium | 1966 | 22%
|
| O | Osmium | 1803 | 22%
|
| P | Potassium | 1807 | 22%
|
| P | Promethium | 1945 | 22%
|
| R | Radium | 1898 | 22%
|
| R | Radon | 1899 | 22%
|
| R | Rhenium | 1925 | 22%
|
| R | Rhodium | 1804 | 22%
|
| R | Roentgenium | 1994 | 22%
|
| R | Rutherfordium | 1969 | 22%
|
| S | Seaborgium | 1974 | 22%
|
| S | Silicon | 1808 | 22%
|
| S | Strontium | 1808 | 22%
|
| T | Titanium | 1791 | 22%
|
| B | Bromine | 1825 | 11%
|
| C | Caesium | 1860 | 11%
|
| C | Californium | 1950 | 11%
|
| C | Cerium | 1803 | 11%
|
| C | Chlorine | 1774 | 11%
|
| D | Dubnium | 1970 | 11%
|
| E | Erbium | 1843 | 11%
|
| G | Gallium | 1875 | 11%
|
| H | Helium | 1868 | 11%
|
| H | Holmium | 1878 | 11%
|
| I | Indium | 1863 | 11%
|
| I | Iridium | 1803 | 11%
|
| L | Lanthanum | 1838 | 11%
|
| L | Lawrencium | 1961 | 11%
|
| L | Lutetium | 1906 | 11%
|
| M | Magnesium | 1808 | 11%
|
| M | Molybdenum | 1778 | 11%
|
| N | Neodymium | 1885 | 11%
|
| N | Neon | 1898 | 11%
|
| N | Niobium | 1801 | 11%
|
| P | Palladium | 1802 | 11%
|
| P | Polonium | 1898 | 11%
|
| P | Praseodymium | 1885 | 11%
|
| P | Protactinium | 1913 | 11%
|
| R | Rubidium | 1861 | 11%
|
| R | Ruthenium | 1844 | 11%
|
| S | Samarium | 1879 | 11%
|
| S | Scandium | 1879 | 11%
|
| S | Selenium | 1817 | 11%
|
| S | Sodium | 1807 | 11%
|
| T | Tantalum | 1802 | 11%
|
| T | Technetium | 1937 | 11%
|
| T | Tellurium | 1782 | 11%
|
| T | Terbium | 1843 | 11%
|
| T | Thallium | 1861 | 11%
|
| T | Thorium | 1829 | 11%
|
| T | Thullium | 1879 | 11%
|