1.

Which of the following particles is emitted in the nuclear reaction: `._(13)Al^(27) + ._(2)He^(4) rarr ._(14)P^(30 +) ….?`A. `._(0)n^(1)`B. `._(-1)e^(0)`C. `._(1)H^(1)`D. `._(1)H^(2)`

Answer» Correct Answer - C
`._(13)A^(27) + ._(2)He^(4) rarr ._(14)P^(30) + ._(Z)X^(A)`
Equating mass number on both sides
`27 + 4 = 30 + A`
`:. A = 31 - 30 = 1`
Equating atomic number on both sides
`13 + 2 = 14 + Z`
`:. Z = 1`
`:.` Particles is `._(1)H^(1)`.


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