Chemical element of metals. Cu comes from Cuprum, Fe comes from Ferrum, Ag from Argentum. The symbols were not followed by a period (full stop) as with abbreviations. Later chemical elements were also assigned unique chemical symbols, based on the name of the element, but not necessarily in English. For example, sodium has the chemical symbol 'Na' after the Latin "natrium". The same applies to "W" (wolfram) for tungsten, "Fe" (ferrum) for iron, "Hg" (hydrargyrum) for mercury, "Sn" (stannum) for tin, "K" (kalium) for potassium, "Au" (aurum) for gold, "Ag" (argentum) for silver, "Pb" (plumbum) for lead, "Cu" (cuprum) for copper, and
This Is What You Came For France, Hungary, Italy, the Netherlands, Norway, Portugal and Slovakia. The song has reached the top 10 in all except three of the countries it has charted in. Taylor Swift performed "This is What You Came For" on the piano for the first time live at the United States Grand Prix in Austin, Texas, on 22 October 2016. Swift then performed an acoustic guitar version at the DirecTV Super Saturday Night in Houston, Texas, on 4 February 2017. This Is What You Came For "This Is What You Came For" is a song by Scottish DJ and record producer Calvin Harris,