Radioactivity (A-level only)

An induced fission event occurs when a uranium-236 nucleus splits to produce barium-144, krypton-89, and three free neutrons.

\begin{array}{|c|c|} \hline \text{Nuclide} & \text{Binding energy per nucleon / MeV} \\ \hline ^{236}_{\phantom{0}92}\text{U} & 7.50 \\ \hline ^{144}_{\phantom{0}56}\text{Ba} & 8.30 \\ \hline ^{\phantom{0}89}_{\phantom{0}36}\text{Kr} & 8.60 \\ \hline \end{array}

What is the energy released in this fission reaction?

$MeV84\text{ MeV}$

$MeV106\text{ MeV}$

$MeV191\text{ MeV}$

$MeV1961\text{ MeV}$

An induced fission event occurs when a uranium-236 nucleus splits to produce barium-144, krypton-89, and three free neutrons.

\begin{array}{|c|c|} \hline \text{Nuclide} & \text{Binding energy per nucleon / MeV} \\ \hline ^{236}_{\phantom{0}92}\text{U} & 7.50 \\ \hline ^{144}_{\phantom{0}56}\text{Ba} & 8.30 \\ \hline ^{\phantom{0}89}_{\phantom{0}36}\text{Kr} & 8.60 \\ \hline \end{array}

What is the energy released in this fission reaction?

$MeV84\text{ MeV}$

$MeV106\text{ MeV}$

$MeV191\text{ MeV}$

$MeV1961\text{ MeV}$

Radioactivity (A-level only) Questions