
Ba2+ ion
A Ba²⁺ ion is a barium atom that has lost two electrons, giving it a positive charge. In its neutral form, barium has 56 electrons, but losing two electrons results in a +2 charge. This ion plays a role in various chemical processes and compounds, especially in medicine and industry, such as in imaging tests of the digestive system. Because it’s positively charged, Ba²⁺ can interact with negatively charged molecules, forming compounds and helping to conduct electricity or participate in chemical reactions.