radioactive Radium
in minute quantities in Uranium pitchblende
I'm the heaviest alkali earth metal
and my preparations are remarkable
for maintaining higher temperatures than what surrounds me
and of course for my deadly radioactivity

my decay products A B C D E F Radium
are now known to be isotopes of other elements
discovered by Marie and Pierre Curie
and possibly caused her life to end prematurely

over 1 million times more radioactive than Uranium
my seven stages of decay products are Radium emanation
1,602 years til I decay to Radon
used to be used by self-luminous painters
before killing all of them
I'm the basis for one unit of radioactivity
my isotope 226 defines the non-SI curie
then on February 4th 1936 Radium E
became the first radioactive element to be made synthetically

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