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Francium is the heaviest known member of the alkali metals series. It has the highest equivalent weight of any element and is the most unstable of the first 101 elements of the periodic system. As you might imagine, there are no stable isotopes of this element. Tell me more...

Comments

October 29, 2008 at 11:36 am
(1) VanessaJonas says:

thanks for this stuff..it really helped me…

January 6, 2009 at 12:21 pm
(2) Lauren says:

thanks so much. you got me an A+ on my project!

August 6, 2009 at 7:17 pm
(3) MaxineHatesJonasBrothers says:

…wow?…
i can see why you’re totally a proffeser of Chemistry at Oxford…

November 17, 2011 at 6:50 pm
(4) maximum ride says:

not really helping me!!!!

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