Magnesium is metal in group IIA of the periodic table with the atomic number 12, an atomic weight of 24.312, a density of 1.74 Mg/m 3, and a melting temperature of 650 C. The electronic configuration ...
Cesium is a metal in group IA of the periodic table with atomic number 55, an atomic weight of 132.905, and a density of 1.9 Mg/m 3. Its melting point is 28.7 C, and it boils at 690 C. The electronic ...
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