What is the compound formula for ba2 and no3–?

The chemical compound formed by the combination of given ions is

Explanation:

Barium is the 56th element of periodic table having electronic configuration of .

To form ion, this element will loose 2 electrons.

Nitrate ion is a polyatomic ion having chemical formula of

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical compound formed by the combination of given ions is

The formed compound is an ionic compound.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.