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Find the kinetic energy of the alpha - p...

Find the kinetic energy of the `alpha` - particle emitted in the decay `^238 Pu rarr ^234 U + alpha`. The atomic masses needed are as following:
`^238 Pu 238.04955 u`
`^234 U 234.04095 u`
`^4 He 4.002603 u`.
Neglect any recoil of the residual nucleus.

A

`6.8xx10^(-14) J`

B

`6.8xx10^(-13) J`

C

`4.3xx10^(-14) J`

D

`4.3xx10^(-13) J`

Text Solution

Verified by Experts

Mass defect =(238.05079-234.04363-4.00260) u=`4.56 xx10^(-3) u`
`mc^(2) =7.57xx10^(-30)xx9xx10^(16)=6.8xx10^(-13) J`
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