Which type of radiation consists of a fast stream of negatively charged particles?

a. alpha particles

b. beta particles

c. gamma rays

d. positron particles

Correct option is B.

Explanation:

Beta particles are known as the electrons which obtains in the nucleus when a neutron divides into an electron, and a proton. The electron is emitted at a very high-speed, but the proton stays in the nucleus. Since an electron contains - 1 charge, and a beta particle also contains - 1 charge.

So, beta particle is known as the type of radiation which consists of a fast stream of negatively charged particles.

option (b)

Explanation:

The stream of negatively charged particles are beta particles. The beta particles are negatively charged and they are fast moving electrons.