Beta ray (β), is a high-energy, high-speed electron or positron

Q.  Beta ray consists of

1) Positrons
2) Electrons
3) Helium nucleus

- Published on 05 May 16

a. 1, 2
b. 2, 3
c. 2
d. All of the above

ANSWER: 1, 2
 
  • A beta particle, sometimes called beta ray, denoted by the lower-case Greek letter beta (β), is a high-energy, high-speed electron or positron emitted in the radioactive decay of an atomic nucleus, such as a potassium-40 nucleus, in the process of beta decay.
  • Two forms of beta decay, β- and β+, respectively produce electrons and positrons.
  • Beta particles are a type of ionizing radiation.

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