Physics - Atomic structure

Question 1

Alpha vs beta

Strucutre - penetration - deflection

Answer 1

Structure - Alpha = helium nucleus with 2 protons/electrons
Beta particle = electron and comes from the nucleus

Penetration
Alpha particles = poorly penetrating - penetrate 5 cm in air, blocked by paper
Beta particles = penetrate several meters of air, pass through foil, can travel further than alpha in air/materials

Deflection
Alpha and beta deflect in opposite directions
Beta deflected more than alpha
Alpha particles have greater charge and mass