1.

Which of the following particle is emitted in the reaction \[_{13}A{{l}^{27}}{{+}_{2}}H{{e}^{4}}{{\to }_{14}}{{P}^{30}}+.....\]                [DCE 1999]

A.                 \[_{0}{{n}^{1}}\]              
B.                 \[_{-1}{{e}^{0}}\]
C.                 \[_{1}{{H}^{1}}\]             
D.                 \[_{1}{{H}^{2}}\]
Answer» D.                 \[_{1}{{H}^{2}}\]


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