Question

Uranium disintegrates to form thorium and thorium disintegrates to form actinium due to radioactive disintegration. The disintegration is shown by the following equations.

92 U 238 ----》90 Th 234 + 2 He 4

90 Th 234 ----》90 Ac 234 + -1 B(beta)0

With reference to the above information, answer the following questions.

(i) State the radioactive law demonstrated by the above equations. [1]

(ii) How many alpha and beta particles are emitted when 90 Th 234 is converted into 82 Pb 206 [2]

(iii) An atomic nucleus A emits a beta particle and changes to new nucleus C? What is the composition of nucleus C?[1]​

Answer 1

Answer:

Uranium disintegrates to form thorium and thorium disintegrates to form actinium due to radioactive disintegration. The disintegration is shown by the following equations.

92 U 238 ----》90 Th 234 + 2 He 4

90 Th 234 ----》90 Ac 234 + -1 B(beta)0

With reference to the above information, answer the following questions.

(i) State the radioactive law demonstrated by the above equations. [1]

(ii) How many alpha and beta particles are emitted when 90 Th 234 is

Explanation: