Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. what formulas did she write?

Explanation:

Sodium has atomic number of 11 and its electronic configuration is given by:

The nearest stable electronic configuration to sodium is of the neon. So, in order to attain stability of noble gas it will loose its single electron.

Sodium has single valency that is 1.

Let nbe the valency of the ion 'X'

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 formulas for all the possible compounds that sodium can form with the other ions will be:

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