What is the formula for calcium?

Answer by  beelady (334)

Calcium is an element and so it is made of only Ca, it's atomic symbol. It is normally present in it's dry form as a salt, such as calcium carbonate (CaCO3), or in solution as a free calcium ion (Ca2+). In it's elemental state (Ca) it is a soft reactive metal.

Answer by  PAtobeDU12 (239)

The chemical formula for calcium is Ca. It is located in the Alkali Earth Metals series on the periodic table, in group 2 and period 4. The atomic number of calcium is 20, meaning it has 20 protons in the nucleus of its atom. Pure calcium is a shiny metal that is soft and reacts violently with water.

Answer by  njeri (142)

Am not sure that you are not confusing between chemical formula and symbol.Chemical formulas are for compounds (which are a combination of two or more elements in fixed ratios) while symbols are for free elements. Calcium, therefore, being an element has no chemical formula but a chemical symbol which is Ca.