1.

Nucleus produced due to a-decay of the nucleus \[_{Z}{{X}^{A}}\] is [MP PET 2002]

A.            \[_{Z+2}{{Y}^{A+4}}\]      
B.            \[_{Z}{{Y}^{A}}\]
C.            \[_{Z-2}{{Y}^{A-4}}\]        
D.            \[_{Z-4}{{Y}^{A-2}}\]
Answer» D.            \[_{Z-4}{{Y}^{A-2}}\]


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