Question

What is the representative particle for barium chloride?

Answer 1

Answer: The chemical formula for the given compound is
`BaCl_2`

Step-by-step explanation:

Barium chloride is formed by the combination of barium and chlorine atoms. This compound is ionic compound because electrons get transferred from one atom to another atom.

Barium is the 56th element of the periodic table. It is a metal and it looses its electrons. The electronic configuration for this element is
`[Xe]6s^2`

This element will loose 2 electrons and forms
`Ba^(2+)` ion.

Chlorine is the 17th element of the periodic table. It is a non-metal and it gains electrons. The electronic configuration for this element is
`[Ne]3s^23p^5`

This element will gain 1 electron and forms
`Cl^-` ion.

Hence, the chemical formula for the given compound is
`BaCl_2`

Answer 2

Barium chloride is salt with ionic bonds. Barium chloride contains one barium cations (charge of ion is 2+) and two chlorine anions (charge for ion is 1-).
The representative particle of an ionic compound is its formula unit (lowest whole number ratio of ions in an ionic compound), for barium chloride that is BaCl₂.