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A deutron strikes .8 O^16 nucleus with s...

A deutron strikes `._8 O^16` nucleus with subsequent emission of an alpha particle. Idenify the nucleus so produced.

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The correct Answer is:
`._(7)N^(14)`

`._(8)O^(16)+._(1)H^(2)to._(Z)X^(A)+._(2)He^(4)`
Conservation of mass number:
`A+4=16+2=18, A=18-4=14`
Conservation of charge number:
`Z+2=8+1=9`
`Z=9-2=7`
`:.` Element is `._(7)N^(14)`
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