1.

The number of neutrons accompanying the formationof ""_54^139Xe and ""_38^94Sr from the absorption of slow neutrons by ""_92^235U followed by nuclear fission is

Answer»

0
2
1
3

Solution :`""_92^235U + ""_0^1n to ""_54^139Xe + ""_38^94 SR+ x ""_0^1n`
Equating mass NUMBER on both sides
235+1= 139+94+(x x 1)
x=3
Thus, 3 neutrons released in the PROCESS.


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