diffhistRadar12:49−100Pierre cbtalkcontribs(Redundant with the third paragraph of the introduction : The term RADAR was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term radar has since entered English and other languages as an anacronym, a common noun, losing all capitalization.")Tag: Undo
diffhistSilicon12:45+39194.68.59.47talk(Changed "tetravalent non-metal" into "tetravalent metalloid (sometimes considered a non-metal)")