Now we are looking on the crossword clue for: Particle with a positive or negative charge.
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Possible Answers:
Ion.
Last seen on: Daily Celebrity Crossword – 9/19/20 Smartypants Saturday
Random information on the term ” Ion”:
An air ioniser (or negative ion generator or Chizhevsky’s chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle. Cations are positive ions missing one or more electrons, resulting in a net positive charge. Some commercial air purifiers are designed to generate negative ions. Another type of air ioniser is the electrostatic discharge (ESD) ioniser (balanced ion generator) used to neutralise static charge. In 2002, in an obituary in The Independent newspaper, Cecil Alfred ‘Coppy’ Laws was credited with being the inventor of the domestic air ioniser.
Air ionisers coupled with electrostatically positively charged collector plates have been used to eliminate the occurrence of airborne bacterial infections, lower airborne viral infections and to reduce static electricity build-up in electronics.
Air ionisers are used in air purifiers to remove particles from air. Airborne particles become charged as they attract charged ions from the ioniser by electrostatic attraction. The particles in turn are then attracted to any nearby earthed (grounded) conductors, either deliberate plates within an air cleaner, or simply the nearest walls and ceilings. The frequency of nosocomial infections in British hospitals prompted the National Health Service (NHS) to research the effectiveness of anions for air purification, finding that repeated airborne acinetobacter infections in a ward were eliminated by the installation of a negative air ioniser—the infection rate fell to zero, an unexpected result. Positive and negative ions produced by air conditioning systems have also been found by a manufacturer to inactivate viruses including influenza.