The concept of dimensions and physical sizes becomes less straightforward when we delve into the realm of subatomic particles. In classical physics, we often describe objects in terms of their dimensions—length, width, and depth. However, when it comes to subatomic particles, such as electrons, protons, and neutrons, the traditional notion of dimensions may not directly apply.
According to our current understanding in physics, subatomic particles are often described as point-like particles or elementary particles. This means that they are considered to be fundamental entities with no internal structure or size. In other words, they are not thought to possess any physical dimensions in the traditional sense.
However, it's important to note that this description is based on the framework of quantum mechanics, which governs the behavior of particles at the subatomic scale. In quantum mechanics, particles are described by wave functions, and their properties are often understood in terms of probabilities and distributions rather than classical attributes like size and position.
While subatomic particles are considered dimensionless in quantum mechanics, it is crucial to remember that this does not mean they are truly "zero" in size. Instead, it implies that the concept of size and dimension as we perceive it in everyday life may not be directly applicable at the subatomic scale.
It's worth mentioning that the exploration of particle physics is an active field of research, and our understanding of subatomic particles continues to evolve. New discoveries and theories may provide further insights into the true nature of these particles and their properties, including any underlying structures or dimensions that may exist beyond our current knowledge.