What is the chemical symbol for calcium?

The chemical symbol for calcium is represented as Ca. Each element on the periodic table has a unique one- or two-letter abbreviation derived from its English name or its Latin name. In this case, "Ca" comes from the first two letters of "calcium." This standardized notation is crucial for communication in chemistry, allowing scientists and students to identify elements quickly and accurately.

Copper, represented by Cu, does not relate to calcium as they are different elements entirely. Fe stands for iron, which is also unrelated. Mg represents magnesium, yet again a distinct element from calcium. Thus, the focus on the specific letters forming "Ca" is what makes it unequivocally the correct symbol for calcium.