Question

write the charge of each ion in the compound below.
nano₂
na =
no₂ =
write the name for the formula below.

Explanation:

Step1: Determine the charge of Na ion

Sodium (Na) is in Group 1 of the periodic table. Elements in Group 1 have a tendency to lose one electron to form ions. So, the charge of Na ion is \(+ 1\).

Step2: Determine the charge of \(NO_{2}\) ion

In the compound \(NaNO_{2}\), the overall charge of the compound is neutral (\(0\)). Let the charge of \(NO_{2}\) be \(x\). We know that for \(NaNO_{2}\), \((+1)+x = 0\). Solving for \(x\), we get \(x=-1\).

Answer:

\(Na = + 1\), \(NO_{2}=-1\), the name of \(NaNO_{2}\) is sodium nitrite.