FIRST 20 ELEMENTS INVENTOR AND VALENCY
ELEMENT VALENCY INVENTOR HYDROGEN 1 HENRY CAVENDISH HELIUM 0 JOSEPH NORMAN LOCKYER LITHIUM 1 JOHAN AUGUST ARFWEDSON BERELIUM 2 LOUIS-NICOLAS VAUQUELIN BORON 3 JOSEPH LOUIS GAY-LUSSAC CARBON 4 HUMHRY DAVY NITROGEN 3,5 DANIEL RUTHERFORD OXYGEN 2 JOSEPH PRIESTLEY FLUORINE 1 FERDINAND FREDARAC HENRI MOISSAN NEON 0 SIR WILLIAM RAMSAY SODIUM 1 HUMHRY DAVY MAGNESIUM 2 JOSEH BLACK ALUMINIUM 3 HANS CHRISTIAN ORSTED SILICON 4 JONS JACOB BERZELIUS PHOSPHORUS 5 HENNING BRAND SULPHUR 6 ----- CHLORINE ...