Answer:
Adding Neutrons
General Formulas and Concepts:
Chemistry - Atomic Structure
- Atoms Composition
- Nucleus - Protons, Neutrons
- Electrons
Step-by-step explanation:
We know that adding Protons to any atom will change its chemical properties and make it a different element.
We also know that adding Electrons to any atom will simply only change its overall charge.
Isotopes are formed by adding neutrons to the nucleus. It will be the same element but it would have a different mass and amount of neutrons.