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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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