During the nuclear reaction described by 235 W → 235 X→ 231 Y 92 93 91 The particles emitted are respectively

Assessment: JAMB UTME - Physics - 2007 Subject: Physics

Question 1 Report

During the nuclear reaction described by

235 W → 235 X→ 231 Y
92 93 91

The particles emitted are respectively

Answer Details
The decay process illustrated above shows that the lost β -particle to decay to the X by increase its atomic number ( from 92 to 93) and leaving the mass no. unaffected. There after, x decayed by -α emission to give Y, by decreasing the mass no. by 2 ( from 93 to 91).
Thus , the emission is β and α particles respectively

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