Metals, Reactivity Series and Metallurgy Basics

60 lessons, pages 1301–1360.

  1. Metals as Chemical Materials — Connecting element identity, bonding and useful behavior
  2. Metallic Bonding and Mobile Electrons — The lattice model behind conductivity and shape change
  3. Physical Properties of Metals — Lustre, conductivity, density and melting trends with exceptions
  4. Malleability and Ductility — Deformation of metallic solids without immediate fracture
  5. Metals, Nonmetals and Metalloids — Using property patterns without treating boundaries as absolute
  6. The Reactivity Series as an Evidence-Based Ordering — Comparing tendencies to form positive ions in specified reactions
  7. Metals Reacting with Oxygen — Oxide formation, rate and surface protection
  8. Metals Reacting with Water and Steam — Different conditions for alkali metals, magnesium and iron
  9. Metals Reacting with Dilute Acids — Hydrogen evolution and exceptions for oxidizing acids
  10. Displacement Reactions Between Metals — Predicting ion reduction by a more reactive metal
  11. Aqueous Displacement Observations — Color changes, coatings and reaction controls
  12. Limits of a Simple Reactivity Series — Passivation, concentration and reaction conditions
  13. Oxidation of Metals and Reduction of Ions — Tracking electron transfer in metal displacement
  14. Balancing Metal Displacement Equations — Matching electron loss, ion charge and atom counts
  15. What Is a Mineral and What Is an Ore? — Natural occurrence versus practical extractability
  16. Native Metals and Combined Metals — Why some elements occur free while others occur as compounds
  17. Common Ore Compounds — Oxides, sulfides and carbonates as metal sources
  18. Gangue and Ore Grade — Unwanted material and the fraction of recoverable metal
  19. Stages in Extracting a Metal — Concentration, conversion, reduction and refining
  20. Crushing and Physical Separation — Preparing ore and separating phases by physical properties
  21. Gravity and Magnetic Concentration — Density and magnetic differences in ore beneficiation
  22. Froth Flotation at an Introductory Level — Surface affinity and selective concentration of sulfide ores
  23. Leaching and Selective Dissolution — Transferring a target metal species into solution
  24. Calcination of Carbonate Ores — Heating with limited air to form oxides and carbon dioxide
  25. Roasting of Sulfide Ores — Oxidizing sulfides and managing sulfur dioxide
  26. Metal Oxides as Extraction Intermediates — Why oxide formation often precedes reduction
  27. Reduction with Carbon — Using a carbon reductant for suitable metal oxides
  28. Reduction with Carbon Monoxide — Gas–solid reduction and carbon dioxide formation
  29. Reduction with a More Reactive Metal — Aluminium displacement of selected metal oxides
  30. Why Some Metals Need Electrolysis — Strongly stable compounds beyond ordinary carbon reduction
  31. Molten-Salt Electrolysis Basics — Cathode metal formation and anode product accounting
  32. Aluminium Extraction Overview — Alumina feed, molten electrolyte and electrode reactions
  33. Iron Extraction in a Blast Furnace — Ore reduction, coke, limestone and slag roles
  34. Blast-Furnace Reduction Equations — Carbon monoxide formation and iron oxide reduction
  35. Limestone, Flux and Slag — Removing silica through calcium silicate formation
  36. Pig Iron and Steel — How carbon content and processing change properties
  37. Zinc Extraction Outline — From sulfide or oxide feed toward reduced zinc
  38. Copper Extraction Outline — Ore concentration, conversion and refining pathway
  39. Electrolytic Refining of Copper — Anode dissolution, cathode deposition and impurity behavior
  40. Purity, Recovery and Extraction Yield — Separating ore grade from process recovery
  41. Calculating Metal from Ore Mass — Ore grade and formula composition in a mass pathway
  42. Calculating Reductant Demand — Balanced oxide-reduction ratios and reagent excess
  43. Calculating Gas Products in Extraction — Carbon dioxide and sulfur dioxide from stated equations
  44. Energy Demands of Metal Extraction — Heating and electrical work as process inputs
  45. Why Reactivity Shapes Extraction Method — Linking compound stability to reduction strategy
  46. Corrosion as Metal Oxidation — Electrochemical loss of metal under environmental exposure
  47. Rusting of Iron — Roles of oxygen, water and hydrated iron oxide products
  48. Factors Affecting Rusting Rate — Salt, moisture and surface conditions
  49. Barrier Protection Against Corrosion — Paints, coatings and the effect of damage
  50. Galvanizing Iron — Zinc coating as barrier and sacrificial protection
  51. Sacrificial Anodes — Using a more readily oxidized metal to protect another
  52. Electroplating Basics — Depositing a metal coating by controlled electrolysis
  53. Alloys and Composition — Metal mixtures designed for changed properties
  54. Steel and Stainless Steel — Carbon and chromium effects in iron-based alloys
  55. Brass and Bronze — Copper-based alloy composition and uses
  56. Metal Recycling as Re-Extraction Avoidance — Material recovery, sorting and retained value
  57. Environmental Effects of Metallurgy — Mining disturbance, emissions, water and waste control
  58. Choosing a Metal for an Application — Balancing strength, conductivity, corrosion and cost
  59. Metallurgy Problem Set — Integrating reactivity, ore conversion and extraction amounts
  60. Metals and Metallurgy: Unit Review — Connecting properties, extraction, corrosion and recycling