1.

In the reaction \[_{3}L{{i}^{6}}+(?)\to {{\ }_{2}}H{{e}^{4}}+{{\ }_{1}}{{H}^{3}}\]. The missing particle is                                     [CPMT 1983, 84]

A.                 Electron              
B.                 Neutron
C.                 Proton 
D.                 Deutron
Answer» C.                 Proton 


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