3. If we want to find out which elements are safe for humans to consume when combined as a salt n which of the following might be the best way to predict the elements that are safest to eat A. Determine how much sodium and similar elements are normally found in the human body. B. Determine the properties of sodium and similar elements using the periodic table. C. Use a conductivity meter to find out if sodium and similar elements conduct electricity. D. Research the abundance of sodium and similar elements in outer space to compare to Earth. E. Look up the melting points of sodium and similar elemer compare temperatures. 4. Explain why you chose the answer you did to question #3.

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