## Detection Note The validator flagged this with error REF_REMOVABLE: > Parts…

PHYSICS · Multi-part · CBSE · Physics · Nuclei · Nuclei

Problem

## Detection Note The validator flagged this with error `REF_REMOVABLE`: > Parts include removable exam/source tags like “(IIT 2000/2004)” that should be stripped; otherwise parts are self-contained. ## Question to Fix (a) Calculate no. of

\alpha

and

\beta

-particles emitted when

{}_{92}\text{U}^{238}

changes into radioactive

{}_{82}\text{Pb}^{206}

. (IIT 2000) (b)

\text{Th}^{234}

disintegrates and emits

6\beta^-

and

7\alpha

-particles to form a stable element. Find the atomic number and mass number of the stable product. Also identify the element. (IIT 2004)

Related theory

Radioactivity
Nuclear physics
Atomic Structure
Nuclei

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