Answer:
-3
General Formulas and Concepts:
Chemistry - Atomic Structure
- Protons have a positive (+) charge
- Neutrons have a neutral (0) charge
- Electrons have a negative (-) charge
Explanation:
Step 1: Define
7 protons, 9 neutrons, 10 electrons.
+7, +0, -10
Step 2: FInd charge
7 + 0 - 10 = -3
