an atom with a positive or negative net charge is called an ion. select all of the models of ions. proton…

Answer:

We need to analyze each model to see if the number of protons and electrons is unequal (since an ion has a non - zero net charge due to unequal number of protons and electrons). Without seeing the specific counts of protons, neutrons and electrons in each model clearly from the image, we can't give a definite list of selected models. But the general approach is to check for models where the number of protons $\neq$ number of electrons.

Explanation:

Step1: Recall ion definition

An ion has a non - zero net charge, so number of protons $\neq$ number of electrons.

Step2: Analyze each model

Count protons and electrons in each model to check for inequality.