The atom that has a charge of -1 is atom 3.
To get the net ionic charge, we will use the formula as shown:
For atom 1;
Net ionic charge = 9 - 9
Net ionic charge = 0
For atom 2;
Net ionic charge = 9 - 8
Net ionic charge = + 1
For atom 3;
Net ionic charge = 9 - 10
Net ionic charge = -1
For atom 4;
Net ionic charge = 9 - 9
Net ionic charge = 0
From the calculation above, the atom that has a charge of -1 is atom 3.
Complete question:
Given the table;
Atom (1) (2) (3) (4)
Number of protons 9 9 9 9
Number of neutrons 8 9 9 10
Number of electrons 9 8 10 9
Based on the table, which atom has a charge of -1
Learn more about charge here: https://brainly.com/question/4145751
