Name that element! Our popular mystery series returns!(Physical science: chemistry)
From: Science World
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Date: 1/12/2004
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Author: Hoffmann, Gretchen
Stop: Without this element, you'd be paralyzed. It helps move muscles and builds strong bones. It also forms gross soap scum in your shower. What is it? Grab a periodic table (next page) and follow these eight clues to find out. Then turn the page to test your chem IQ.
--Gretchen Hoffmann
CLUE 1
IT'S A BUST
In its pure state, it's the fifth-most-plentiful element in Earth's crust (layer of rock that forms Earth's outer surface). But this alkaline earth metal is more ...
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