α rays are made of particles having the higher mass-to-charge ratio and subsequently have the least penetrative capability.

Question

Quizplus · Accepted Answer

Alpha rays, consisting of helium nuclei (2 protons and 2 neutrons), have a relatively high mass and a +2 charge, resulting in a higher mass-to-charge ratio compared to beta and gamma rays. This makes them less penetrative, as they lose energy quickly when interacting with matter.

α Rays Are Made of Particles Having the Higher Mass-To-Charge