Statistics for Elements by Discovery Date #1

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Date	Country	Element	% Correct
1766	UK	Hydrogen	100%
1772	UK	Nitrogen	100%
1774	Sweden	Oxygen	100%
1807	UK	Sodium	89%
1808	UK	Calcium	78%
1817	Sweden	Lithium	78%
1808	France/UK	Boron	67%
1755	UK	Magnesium	67%
1807	UK	Potassium	67%
1797	France	Beryllium	56%
1774	Sweden	Chlorine	56%
1797	France	Chromium	56%
1791	UK	Titanium	56%
1801	Mexico/Sweden	Vanadium	56%
1808	UK	Barium	44%
1811	France	Iodine	44%
1774	Sweden	Manganese	44%
1790	UK	Strontium	44%
1783	Spain	Tungsten	44%
1789	Germany	Zirconium	44%
1735	Sweden	Cobalt	33%
1781	Sweden	Molybdenum	33%
1751	Sweden	Nickel	33%
1801	UK	Niobium	33%
1803	UK	Palladium	33%
1735	Peru	Platinum	33%
1803	UK	Rhodium	33%
1783	Romania	Tellurium	33%
1789	Germany	Uranium	33%
1794	Finland	Yttrium	33%
1803	UK	Osmium	22%
1817	Sweden	Selenium	22%
1802	Sweden	Tantalum	22%
1817	Germany	Cadmium	11%
1803	Germany/Sweden	Cerium	11%
1803	France/UK	Iridium	11%