Question

One reaction which might be used for controlled nuclear fusion is shown

${}_{3}^{7}Li$ + ${}_{1}^{2}H$ ¾® 2(${}_{2}^{4}He$) + X

What is particle X?

• A. An a-particle
• B. An electron
• C. A neutron
• D. A proton

Answer 1

Answer: (C)

A neutron

Answer 2

${ } _ { 3 } ^ { 7 } \mathrm { Li } + { } _ { 1 } ^ { 2 } \mathrm { H } \longrightarrow { } _ { 2 } ^ { 4 } \mathrm { He } + { } _ { 2 } ^ { 4 } \mathrm { He } + { } _ { 0 } ^ { 1 } \mathrm { X }$

i.e. neutron.