Question

give the ion symbol for the ion that has 16 protons and 18 electrons.

Explanation:

Step1: Identify the element from protons

The number of protons is the atomic number. An atomic number of 16 corresponds to sulfur (S).

Step2: Determine the charge of the ion

The charge of an ion is calculated as (number of protons - number of electrons). So, charge = \(16 - 18 = -2\).

Step3: Write the ion symbol

The ion symbol for sulfur with a -2 charge is \(\text{S}^{2-}\).

Answer:

\(\text{S}^{2-}\)