A Level Physics Practice Exam

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Study for the A Level Physics Exam efficiently with engaging quizzes and multiple-choice questions designed to enhance your understanding. Prepare yourself for the challenges of A Level Physics!

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How is the charge of a neutron characterized?

Positive charge
Neutral charge
Negative charge
Variable charge

The correct answer is: Neutral charge

The charge of a neutron is characterized as neutral. Neutrons are subatomic particles found in the nucleus of an atom, alongside protons, and they play a crucial role in the stability of atomic nuclei. Unlike protons, which carry a positive charge, and electrons, which carry a negative charge, neutrons do not possess any electric charge. This neutrality is essential in balancing the electrostatic forces within the nucleus; it allows neutrons to contribute to nuclear stability without repelling or attracting other charged particles. Understanding the role of neutrons is fundamental to atomic structure and the behavior of matter at an atomic level, particularly in nuclear reactions and stability. Since neutrons do not contribute to the charge of an atom, they help mediate the strong nuclear force that holds protons and neutrons together in the nucleus.