What element is Ca plus 2?

The notation "Ca plus 2" refers to a calcium ion with a +2 charge, represented as Ca²⁺. Calcium (Ca) is an alkaline earth metal with an atomic number of 20. When it loses two electrons, it forms the Ca²⁺ ion, which is commonly found in various compounds, including calcium salts and minerals. This ion plays a crucial role in biological processes, such as muscle contraction and neurotransmitter release.