Question

match the relative ionizing power to the radiation type. alpha choose choose beta high low moderate gamma choose positron choose

Explanation:

Alpha particles have a large mass and a +2 charge, making them highly effective at ionizing atoms, so they have high ionizing power. Beta particles (electrons or positrons) are smaller and have less charge - 1 or +1 respectively, so they have moderate ionizing power. Gamma rays are high - energy photons with no mass or charge, so they have low ionizing power. Positrons, being similar to beta - plus particles, have moderate ionizing power.

Answer:

alpha: high
beta: moderate
gamma: low
positron: moderate