Period 6 element devices though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor of alcohol-filled, galinstan-filled, digital, or thermistor-based instruments. It remains in use in scientific research applications and in amalgam material for dental restoration. It is used in lighting: electricity passed through mercury vapor in a phosphor tube produces short-wave ultraviolet light which then causes the phosphor to fluoresce, making visible light. Thallium is a chemical element with the symbol Tl and atomic number 81. This soft gray other metal resembles tin but discolors when exposed to air. The
What a Week to Risk it All What a Week to Risk it All What a Week to Risk it All is ninth and last part of the "What a Week" series by Rosie Rushton. It was published in 2006 by Piccadilly Press Ltd. Jade has a boyfriend - Flynn, whom she met when she was going to her grandma's place in Brighton. She acts like a nurse, when she is with him and she only cares about he won't get hurt. Flynn doesn't like it, because he's preparing for running-on-a-wheel-chair competition (he had an accident and he can't walk). Once, Jade and Flynn go to a