Are Beta ray Negative or Positive?

Answer 1

Beta particles can be both positively AND negatively charged; they

are either high-energy, high-speed electrons (negative standard charge) or positrons (positive standard charge) emitted by certain types of radioactive nuclei such as potassium-40 ( 40K)

Answer 2

Beta rays can be either negative or positive, depending on whether the beta particle emitted in a nuclear reaction is an electron (negatively charged) or a positron (positively charged).

Answer 3

Beta rays may be made up of electrons (negative charge) or of anti-electrons, also known as positrons (positive charge).