1.

Consider the following nuclear reactions, \[_{92}^{238}M\to \,_{y}^{x}N+2\,_{2}^{4}He\]        \[_{y}^{x}N\to \,_{B}^{A}L+2{{\beta }^{+}}\]        The number of neutrons in the element L is        [AIEEE 2004]

A.        140        
B.        144
C.        142        
D.        146
Answer» C.        142        


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