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thorium
volume_up
thorium
English
Noun
a
soft
silvery-white
tetravalent
radioactive
metallic
element;
isotope
232
is
used
as
a
power
source
in
nuclear
reactors;
occurs
in
thorite
and
in
monazite
sands
volume_up
Samples
Nearby
thorite
thoriated
thorium
thorium-228
thorn
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