"what is the total positive charge the protons have together ? " how do i tell? ? !

To calculate this, the first step is to determine the number of protons in each atom of the ion. You can use their atomic number to find the number of protons. If the number protons and electrons are equal there is no charge, so the next step is to determine how many electrons to add or remove to the number of protons.

Where are the questions

Yes it would be a physical change.