Barium is a metal in group IIA of the periodic table with atomic number 56, an atomic weight of 137.34, and a density of 3.5 Mg/m 3. Its melting point is 714 C, and it boils at 1640 C. The electronic ...
The periodic table is a well-organized chart that contains all the known elements in the universe. These elements are ...
In the final programme in our Elements series, Justin Rowlatt looks at the rarest and oddest members of the periodic table. What are they, and what are they used for? Show more In the final ...
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