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 often become demi-pairs to immerse themselves into the language and culture of Australia. Au pair arrangements in Australia and work hours vary from 10 to 40 hours per week. The Cultural Au Pair Association of Australia (CAPAA) was formed in 2012 on a not-for-profit basis. CAPAA is an industry based association for Au pair agencies, with the purpose of protecting and developing the Au pair experience as a rewarding cultural exchange programme. Members agree to abide by the code of conduct developed by the International Au Pair Association (IAPA). CAPAA members agree to meet strict business and ethical standards to