Basic information! Name, symbol and number : Gold, Au,79 Element category: A transition metal Latin Name : Aurum Properties: Gold is dense, soft , shiny therefore solid, and the most malleable and ductile pure metal known . Facts : Gold has been know and highly valued since prehistoric times. It may have been the first metal used by humans and was valued for ornamentation and rituals. Gold's alloys : For most uses of gold the pure metal is too soft on its own and is therefore hardened by the addition of alloying elements, copper, silver, nickel, palladium and zinc. Gold is of course yellow and the various colours seen such as red, white and green are simply alloys of gold. The final colour is dependent on the ratios and type of alloys added.

Gold

Gold’s alloys include sliver and copper. Different colours of Ag-Au-Cu alloys Gold’s alloys include sliver and copper.

Uses for gold! Jewellery –earings,rings, Dental- Gold teeth Financial- Money Electronics-phones Medical-operations Computers-memory boards Glass-en grave ments Aerospace-satellite Awards-medals etc Gliding-Domes.

Basic Information. Name, Symbol, Number: Aluminium,Al,13 Element category: Other Metal Properties : Solid, good conductor for electricity and heat Facts : The most abundant metal in Earth’s crust. Aluminium is a soft, durable, lightweight, malleable metal with appearance ranging from silvery to dull grey, depending on the surface roughness. Aluminium’s alloys : Copper,zinc,manganese,silicon and magnesium.

Aluminium can be recycled

Aluminum's alloys

Uses !! Cooking utensils Military uses e.g planes etc. Electrics. Buildings Food and drink packaging