Question

I have 2 questions
1.The amount of radiation from natural radioactive decay is about ________ times higher than the amount you receive from a dental x-ray.

2.The rays and particles emitted by a radioactive source are called ___________.

Answer 1

1. 4.

2. A beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.