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Francium Research Paper

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Group 1- hydrogen: lightest element on the periodic table. lithium: lithium never occurs freely in nature. sodium:Sodium is the sixth most abundant element in the Earth's crust,. potassium:Potassium ions are necessary for the function of all living cells. rubidium: Rubidium has also been reported to ignite spontaneously in air. caesium:the element is only mildly toxic, it is a hazardous material as a metal and its radioisotopes present a high health risk if released into the environment. francium:Francium is the most unstable of the naturally occurring elements Group 3- scandium:Scandium turnings ignite in air with a brilliant yellow flame to form scandium. yttrium: Yttrium has no known biological role, and exposure to yttrium compounds can

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