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Beryllium Be Atomic Number: 4 Atomic Weight: 9.012182 Melting Point: 1560.15 K Boiling Point: 2742 K Specific mass: 1.85 g/cm3 Electronegativity: 1.57
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Magnesium Mg Atomic Number: 12 Atomic Weight: 24.3050 Melting Point: 923.15 K Boiling Point: 1363 K Specific mass: 1.738 g/cm3 Electronegativity: 1.31
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Calcium Ca Atomic Number: 20 Atomic Weight: 40.078 Melting Point: 1112.15 K Boiling Point: 1757 K Specific mass: 1.54 g/cm3 Electronegativity: 1
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Strontium Sr Atomic Number: 38 Atomic Weight: 87.62 Melting Point: 1042.15 K Boiling Point: 1655 K Specific mass: 2.64 g/cm3 Electronegativity: 0.95
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Barium Ba Atomic Number: 56 Atomic Weight: 137.327 Melting Point: 1002.15 K Boiling Point: 2170 K Specific mass: 3.594 g/cm3 Electronegativity: 0.89
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Radium Ra Atomic Number: 88 Atomic Weight: [226] Melting Point: 973.15 K Boiling Point: 2010 K Specific mass: 5.5 g/cm3 Electronegativity: 0.9
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