What is the formula for the compound formed by Al3+ and N3- ?

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Explanation:

The goal when forming compounds is to achieve a net charge of 0.

We are given aluminum with a charge of 3+  and nitrogen with a charge of 3-.

These charges are equal and opposite, so one of each will equal 0.

Therefore, we do not need any subscripts. List the metal's symbol (aluminum) then the nonmetal.

Th formula for the compound, which is aluminum nitride, is AlN.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.