8e 11 p+
2e
12 nº
1.It has a positive charge.
2.It has a negative charge.
3.It's an ion of sodium (Na)
4.It's an ion of neon (Ne).

The teacher is mostly talking about the distillation of a mixture

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.

The correct answer should be a.