Respuesta :

Nitrogen ions have a charge of -3
Lithium ions have a charge of +1

The sum of nitrogen ions and lithium ions should = 0, that way the equation is true

An example:
NLi3 —> N + Li3

(-3)+(3(+1)) = 0
-3+3=0
0=0

Equation is true.

so we need 3 Lithium ions to equal 1 nitrogen ion, because 3 Lithium ions are required to make the compound NLi3 neutral.

i hope i could help!! good luck :)
CintiaSalazar

Considering the definition of ionic compound, you need 3 Lithium ions and 1 nitrogen ion to obtain a ionic compound electrically neutral.

An ionic compound is made up of positive and negative ions, held together by electrostatic forces of attraction. Atoms of metallic elements tend to lose one or more electrons when combined with non-metallic atoms, and non-metallic atoms tend to gain one or more electrons.

As a result of this transfer of electrons, the metallic atom becomes a positive ion (called a cation) and the non-metallic atom becomes a negative ion (called an anion).

In this case, to form the ionic compound you must take into account that:

  • Nitrogen ions have a charge of -3
  • Lithium ions have a charge of +1

Because the ionic compound must be electrically neutral, it must have the same number of positive and negative charges.

So in this case, 3 lithium ions, each with a 1+ charge, generates 3 positive charges, while 1 nitrogen ion, each with a 3− charge, generates 3 negative charges.

In summary, you need 3 Lithium ions and 1 nitrogen ion to obtain a ionic compound electrically neutral.

Learn more:

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