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 - AQA Synergy Chemical equations - AQA Synergy Calculations in chemistry - AQA Synergy Sample questions - Building blocks for understanding - AQA Synergy ...
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