What ion is barium most likely to form?
Barium’s atomic number is 56; this means that it has 56 protons in its nucleus and also puts it as a period 6 element. An uncharged barium atom would have 56 electrons also. However as a group 2 element barium easily loses 2 electrons to form the +2 cation. The ion has 56-2=54 electrons.
Barium is a group 2 element. Group 2 elements form cations with a #2^+# charge. The formula for the barium ion is #”Ba”^(2+)”#.
Barium Chloride is an inorganic salt that is made up of barium cations (Ba+) and chloride anions (Cl–). It is also called Barium Muriate or Barium dichloride. It is a white solid which is water-soluble, hygroscopic and gives a slight yellow-green colour to a flame. The chemical formula of Barium Chloride is BaCl2.
Barium is a Group 2 element, hence in its ionic form, it donates one valence electron to each chloride ion (of Group 17), creating an ionic compound.
Please visit the Barium element page for information specific to the chemical element of the periodic table….Barium ion.
Li +
Lithium is in Group 1. It has one electron in its outer shell. When this electron is lost, a lithium ion, Li +, is formed.
bromide ion
A bromide ion is the negatively charged form (Br−) of the element bromine, a member of the halogens group on the periodic table. Most bromides are colorless.
Barium becomes an ion with a 2+ charge when it reacts with another atom of another element that steals 2 electrons from it. In this redox reaction, barium starts as a neutral solid but becomes an aqueous ion with a 2+ charge.
2+
The charge on the barium ion is 2+, meaning it has a positive charge of two.
Fluorine is the most likely to form ionic compound with barium.
