Input interpretation
period 4 elements | discovery year
Summary
median | 1796 latest | 1898 (krypton) earliest | 8000 BC (copper) distribution |
Distribution plots
Table
potassium | 1807 calcium | 1807 scandium | 1879 titanium | 1791 vanadium | 1801 chromium | 1780 manganese | 1774 iron | 2000 BC nickel | 1751 cobalt | 1735 copper | 8000 BC zinc | 1500 gallium | 1875 germanium | 1886 arsenic | 1250 selenium | 1817 bromine | 1826 krypton | 1898