What charge does calcium, Ca, have when it becomes an ion?

Calcium, represented by the symbol Ca, typically has a charge of +2 when it becomes an ion. This occurs because calcium has two electrons in its outer shell that it tends to lose in order to achieve a stable electron configuration.

Why Calcium Loses Electrons

Calcium is located in Group 2 of the periodic table, which means it is an alkaline earth metal. These metals are known for their tendency to lose electrons easily.

Formation of Calcium Ion

When calcium loses its two outer electrons, it transforms into a calcium ion (Ca²⁺). This process can be summarized as follows:

• Calcium atom: Ca
• Electrons lost: 2
• Resulting ion: Ca²⁺

Importance of Calcium Ions

Calcium ions play a crucial role in various biological processes, including muscle contraction, nerve function, and blood clotting. Understanding the charge of calcium ions helps in studying these essential functions.