Aluminium Silver

Aluminium

Aluminium or aluminum is a chemical element; it has symbol Al and atomic number 13. It has a density lower than other common metals, about one-third that of steel. Aluminium has a great affinity toward oxygen, forming a protective layer of oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, nonmagnetic, and ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the 12th-most abundant element in the universe. The radioactivity of 26Al leads to it being used in radiometric dating.

Silver

Silver is a chemical element; it has symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form, as an alloy with gold (electrum) and other metals, and in minerals such as acanthite, argentite and chlorargyrite. Most silver is recovered as a byproduct of lead–zinc, copper and gold mining and refining.

Silver (color)

Silver or metallic gray is a color tone resembling gray that is a representation of the color of polished silver.

aluminium

Noun

1. A light, silvery metal extracted from bauxite, and a chemical element (symbol Al) with an atomic number of 13.

silver

Noun

1. A lustrous, white, metallic element, atomic number 47, atomic weight 107.87, symbol Ag.
2. Coins made from silver or any similar white metal.

Adjective

1. Made from silver.
2. Made from another white metal.