Which of the following subatomic particles have a positive charge and are found in the nucleus of an atom?

• A. Electrons
• B. Neutrons
• C. Protons
• D. Alpha particles

Answer: (C)

Verified step by step guidance

1. Recall the three main subatomic particles in an atom: protons, neutrons, and electrons.
2. Understand the charge of each particle: protons have a positive charge, neutrons have no charge (neutral), and electrons have a negative charge.
3. Identify the location of each particle within the atom: protons and neutrons are located in the nucleus, while electrons orbit around the nucleus.
4. Recognize that alpha particles are composed of two protons and two neutrons, so they carry a positive charge but are not individual subatomic particles inside a single atom's nucleus.
5. Conclude that the subatomic particles with a positive charge found in the nucleus of an atom are protons.