An element of nucleon number P and atomic numbe... - WAEC Physics 2014 Question
An element of nucleon number P and atomic number Q emits an alpha particle from its nucleus. The resultant numbers of the new element formed are respectively
A
P - 4 and Q + 2
B
P - 4 and Q - 2
C
P + 2 and Q + 2
D
P + 2 and Q - 2
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Correct Option: B
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