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Chemistry, 05.10.2019 23:40 Milosmom

Looking at the periodic table, which element is a non-metal?
a. argon (ar)
b. silicon (si)
c. potassium (k)
d. magnesium (mg)

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Looking at the periodic table, which element is a non-metal?
a. argon (ar)
b. silicon (...
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