Question

Почему небольшое количество альфа частиц чуть чуть изменило траекторию своего движения?

Answer 1

Потому что альфа частицы если они движутся перпендикулярно линиям магнитного поля испытывают действие силы Лоренца ,  поэтому двигаются по дугам окружностей, но кроме этого они отталкиваются друг от друга так как имеют одинаковый положительный заряд

Answer 2

Why did a small number of alpha particles slightly change their trajectory?

When a small number of alpha particles slightly change their trajectory, it is likely due to the influence of external forces or interactions with other particles or fields. Alpha particles are positively charged particles consisting of two protons and two neutrons, which are emitted during certain types of radioactive decay.

One possible reason for the change in trajectory is the presence of electromagnetic fields. Alpha particles are charged particles, and they can be affected by electric and magnetic fields. If there are electric or magnetic fields in the vicinity of the alpha particles, these fields can exert forces on the particles and cause them to deviate from their original path.

Another factor that can influence the trajectory of alpha particles is collisions with other particles. If an alpha particle collides with another particle, such as an atom or a molecule, it can experience a change in direction due to the interaction. These collisions can be elastic, where the alpha particle simply changes direction without losing energy, or inelastic, where the alpha particle transfers