Question

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

• A. proton, neutron, positron
• B. neutron, positron, proton
• C. proton, positron, neutron
• D. positron, proton, neutron

Answer 1

Answer: (A)

proton, neutron, positron

Answer 2

(i) $^{27}_{13}AI + ^{4}_{2}He (\alpha) \longrightarrow ^{30}_{14}Si + ^{1}_{1}X$
X is proton $^{1}_{1}H.$
(ii) $^{27}_{13}AI + ^{4}_{2}He (\alpha) \longrightarrow ^{30}_{15}P+ ^{1}_{0}Y$
Y is neutron, $^{1}_{0}n.$
\hspace30mm ^{30}_{15}P \longrightarrow ^{30}_{14}Si + ^{0}_{1}Z
Z is positron,$^{0}_{+1}e.$