 Re: Going to Japan in June! tips pls!
haha, poor poor qr tio dao... aww... hmm, jap in june no snow leh.. dunno -shrugs- 
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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