Thursday, May 21, 2009

Element of the day - Thursday, May 21st

Who am I? I am a steel-gray, lustrous, hard metal that takes a high polish and has a high melting point. I am use to give a shiny finish to metals and to prevent corrosion. The human body needs trace amounts of me.E-mail me with your answer at Include the element's chemical symbol.Image taken from:

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