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20
  Ca  
40.078000
Calcium


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Name: Calcium
Symbol: Ca
Atomic Number: 20
AtomicWeight: 40.078000
Family: alkaline metals
CAS RN: 7440-70-2
Description: A silvery white metal
State (25 ° C): Solid
Oxidation states: +2
Valence Electrons: 4s2

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