ICSE Class 10 Physics 2018 Solved Paper

The ore of Uranium found in nature contains ${ }_{92} U^{238}$ and ${ }_{92} U^{235}$ . Although both the isotopes are fissionable, it is found out experimentally that one of the two isotopes is more easily fissionable.

Question : 74 of 78

Marks: +1, -0

Write a nuclear reaction when Uranium 238 emits an alpha particle to form a Thorium (Th) nucleus.

Solution:

{ }_{92} {\U}^{238} →{ }_{90} {\Th}^{234}+{ }_2 {\He}^4

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