Cathodic Protection Tester Practice Exam

What is the charge of protons, electrons, and neutrons respectively?

1. Negatively, Positively, No Charge

2. Positively, Negatively, No Charge

3. No Charge, Positively, Negatively

4. Negatively, No Charge, Positively

The correct answer is: Positively, Negatively, No Charge

Protons carry a positive charge, electrons are negatively charged, and neutrons have no charge at all. This fundamental understanding is critical in various fields, including Cathodic Protection, where the behavior of electric charges plays a significant role in corrosion processes and protection methods. Identifying the correct charge for each particle is essential in understanding chemical bonding, reactions, and how electrical currents are established in electrochemical systems. For instance, in cathodic protection, the flow of electrons is pivotal; hence knowing that electrons are negatively charged helps in grasping how they interact with positively charged areas (anodes) and aid in preventing corrosion. Understanding these charges lays the groundwork for deeper topics in electrochemistry and materials science that are vital for effective corrosion control methods.