What property of certain subatomic particles allows them to attract or repel each other?

What property of certain subatomic particles allows them to attract or repel each other?

• A. Electric potential
• B. Electric charge
• C. Magnetic field
• D. Atomic mass

Answer: (B)

The property that enables certain subatomic particles to attract or repel one another is electric charge. Subatomic particles such as protons and electrons carry electric charges; protons have a positive charge, while electrons have a negative charge. This fundamental property leads to the electromagnetic force, which governs the interactions between these charged particles.

Particles with like charges repel each other, while those with opposite charges attract. This behavior is fundamental to the structure of atoms, as it governs the attraction between electrons and protons, thereby keeping the electrons in orbit around the nucleus.

Other properties mentioned do not directly explain the attraction or repulsion between particles in the same manner. Electric potential is related to the work done in moving a charge within an electric field but does not define the nature of the interaction itself. A magnetic field refers to the influence created by moving charges (or magnetic dipoles) but is not applicable to all subatomic interactions. Atomic mass refers to the mass of particles and does not determine how they interact with one another in terms of attraction or repulsion.