Group 11 element Parkes process. These metals, especially silver, have unusual properties that make them essential for industrial applications outside of their monetary or decorative value. They are all excellent conductors of electricity. The most conductive of all metals are silver, copper and gold in that order. Silver is also the most thermally conductive element, and the most light reflecting element. Silver also has the unusual property that the tarnish that forms on silver is still highly electrically conductive. Copper is used extensively in electrical wiring and circuitry. Gold contacts are sometimes found in precision equipment for their ability to remain corrosion-free. Silver
The Element of Freedom official music video for YouTube and music channels. "The Element of Freedom" received generally positive reviews from critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream publications, it received an average score of 67, based on 14 reviews. Andrew Burgess of musicOMH said that the album's production is "a perfect counterpoint to Keys' voice, and the sentiment she's trying to convey", while calling the album one of "the best pop albums of 2009". "Chicago Tribune" writer Greg Kot called the album Keys' "most consistent album and also her most low-key", and found it less