Nickel was discovered and first isolated by Axel Fredrik Cronstedt in 1751. It is a chemical element with symbol Ni and atomic number 28. It is a...
Cobalt was discovered by George Brandt in 1739. Cobalt is a chemical element with symbol Co and atomic number 27. It is always found in chemically...
Iron was discovered before 5000 BC. Iron is a chemical element with symbol Fe and atomic number 26. It is by mass the most common element...
Manganese was discovered by Torbern Olof Bergman in 1770. It is a chemical element with symbol Mn and atomic number 25. It is not found as a...
Chromium was discovered by Louis Nicolas Vauquelin in 1797. Chromium is a chemical element with symbol Cr and atomic number 24. It is a steely-gray, hard and brittle...
Vanadium was discovered by Andrés Manuel del Río in 1801 and was first isolated by Nils Gabriel Sefström in 1830. Vanadium is a chemical element with symbol...
Titanium was discovered by William Gregor in 1791 and was first isolated by Jöns Jakob Berzelius in 1825. It is a chemical element with symbol Ti and...
Scandium was predicted by Dmitri Mendeleev in 1871 and was discovered and first isolated by Lars Fredrik Nilson in 1879. Scandium is a chemical element with...
Calcium was discovered by Humphry Davy in 1808. Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray alkaline earth...
Potassium was discovered and first isolated by Humphry Davy in 1807. Potassium is a chemical element with symbol K and atomic number 19. It was first isolated...
