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
Au pair senteret" (over the state budget); in a Dagsavisen article Kadra Yusuf said that "We have become a class-divided society and we have servantship. ... and the responsibility that goes along. The first step must be that the government keeps the au-pair center open. That, the masters (or the master race) can afford, or what?" A trial is scheduled to be held from 3 January 2017 until 18 January. Four persons - two married couples - are charged with wrongfully having claimed: that they only had one au pair; that the au pair was to participate in Norwegian language courses; and