Nuclear Chemistry - Result Question 1

####1. Bombardment of aluminium by $\alpha$-particle leads to its artificial disintegration in two ways, (i) and (ii) as shown. Products $X, Y$ and $Z$ respectively, are

(2011)

(a) proton, neutron, positron

(b) neutron, positron, proton

(c) proton, positron, neutron

(d) positron, proton, neutron

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Answer:

Correct Answer: 1. (a)

Solution:

  1. (i) ${ } _{13}^{27} Al+{ } _2^{4} He(\alpha) \longrightarrow{ } _{14}^{30} Si+{ } _1^{1} X$ $X$ is proton ${ } _1^{1} H$.

(ii) ${ } _{13}^{27} Al+{ } _2^{4} He(\alpha) \longrightarrow{ } _{15}^{30} P+{ } _0^{1} Y$

$Y$ is neutron, ${ } _0^{1} n$.

$$ Z \text { is positron, }{ } _{+1}{ } _{15}^{30} P \longrightarrow{ }^{30} Pi+{ } _1^{0} Z $$



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