Transition metals tend to form more coloured ions and compounds more than most other elements either in solid form or dissolved in a solvent like water. Examples of the colours of some transition metal salts in aqueous solution are shown below (grey = colourless in the diagrams).
Welcome to the Machine. Welcome to the Machine is the second song on Pink Floyd's 1975 album Wish You Were Here. Written by bassist Roger Waters, it features heavily processed synthesizers and acoustic guitars, as well as a wide range of tape effects. 1 Theme.
To the top. Welcome To The Jungle was the opening volley of an assault on the rock and roll mainstream of the Eighties. The first track on 1987's Appetite for Destruction, Welcome To The Jungle was the antithesis of the pop-metal that was heavily favored by rock radio of the era.