click below
click below
Normal Size Small Size show me how
Earth's crust
Metals in the Earth's crust
| Term | Definition |
|---|---|
| Composition of the Earth’s crust | Oxygen=45%, silicon=27%, all other metals=28% |
| Native | elements uncombined as they are unreactive, e.g. Copper/silver/gold |
| Scarce | rare, limited |
| Scarce metals | Copper, mercury, zinc, silver, gold, lead, tin, platinum |
| Metal ores | sodium chloride=sodium, bauxite=aluminum oxide |