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Information
Element Name: Calcium
Atomic Number: 20
Atomic Symbol: Ca
Atomic Mass: 40.08g
Group: 2 Period: 4
Calcium contains.....
20 protons, 20 neutrons, and 20 electrons. It also contains 2 Valence Electrons.
Calcium is...
-Fairly Hard
-Silvery White appearance
-Soft
-Breakable