Atoms form ions by gaining or losing valence electrons to reach a more stable electron configuration with a full valence shell. The electron configuration of the ion is similar to the nearest noble gas to the atom. Identify the charge when nitrogen becomes an ion.

A) -3

B) -2

C) +1

D) +5

Thanks <3

When an atom looses its electron, it results in the formation of a positive ion which is known as cation and when an atom gains electron, it results in the formation of a negative ion known as anion.

Atomic number of nitrogen is 7 and thus has 7 electrons.

Electronic configuration of nitrogen:

[tex][N]:7:1s^22s^22p^3[/tex]

In order to achieve nearest noble gas configuration of neon , it must gain 3 electrons. [tex]N^{3-}[/tex] is formed by gain of 3 electrons and thus has 10 electrons.

[tex][N^{3-}]:10:1s^22s^22p^6[/tex]

Thus nitrogen gains 3- charge when electron configuration of the ion is similar to the nearest noble gas to the atom.

Atoms form ions by gaining or losing valence electrons to reach a more stable electron configuration with a full valence shell. The electron configuration of the ion is similar to the nearest noble gas to the atom. Identify the charge when nitrogen becomes an ion. A) -3 B) -2 C) +1 D) +5 Thanks <3

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