1. Scandium Sc

2. Titanium Ti

3. Vanadium V

4. Chromium Cr

5. Manganese Mn

6. Iron Fe (ferrum)

7. Cobalt Co

8. Nickel Ni

9. Copper Cu (cuprum)

10. Zinc Zn

11. Scandium Sc 35 th most common element Hard and silvery Used in aluminium-scandium alloys for high-performance sports equipment, and components of aircraft and ballistic missiles

12. Titanium Ti 9 th most common element Resistant to corrosion Used to make very light and strong alloys

13. Vanadium V Soft, ductile, resists corrosion Used to make very strong steel alloys

14. Chromium Cr Hard, resistant to corrosion Used in electroplating Used in stainless steel

15. Manganese Mn Very important in steel alloys Large deposits as nodules on the ocean floor Hard and brittle

16. Iron Fe (ferrum) 6 th most abundant element in the universe Steel is an alloy of iron and carbon, silicon or other metals Ferromagnetic

17. Cobalt Co Superalloys of cobalt are used to make turbines and jet engines Resist corrosion and wear Ferromagnetic

18. Nickel Ni Hard and ductile Used in alloys, especially stainless steel Used in rechargeable batteries and coins Ferromagnetic

19. Copper Cu (cuprum) Ductile High thermal and electrical conductivity Does not react with water Ancient use in weapons, coins Alloys include bronze, brass

20. Zinc Zn Prehistoric use in ornaments Used in brass Fourth most commonly used metal Used in batteries Used to protect iron by galvanising Diamagnetic