Which of these metal exists as an liquid in an room temperature ASodium BMercury CGallium DCesium
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b Mercury metal exists as an liquid in an room temperature
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Mercury is the only elemental metal that is liquid at room temperature. (Cesium melts at about 28.5 °C [83 °F], gallium at about 30 °C [86 °F], and rubidium at about 39 °C [102 °F].) Mercury is silvery white, slowly tarnishes in moist air, and freezes into a soft solid like tin or lead at −38.87 °C (−37.97 °F).
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