 Re: Rollerblade... Anyone???
hmm bladed b4, but gave up coz no time =[
anw quite easy de lar, as long as u not scared pain 
Technetium is the lightest chemical element with no stable isotope. It has atomic number 43 and is given the symbol Tc. The chemical properties of this silvery grey. Its is used in nuclear medicine for a wide variety of diagnostic test. Also use as an anodic corrosion inhibitor for steel.
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