Please help me is my final 2. Which of the following is a fission reaction? Carbon-12 and Hydrogen-1 combining to form a Nitrogen-13 atom
Hydrogen-2 and Hydrogen-3 combining to form a Helium-4 atom
and a neutron
Uranium-235 absorbing a neutron and breaking into Barium-141,
Krypton-92 and three neutrons
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None of the above
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Uranium-235 absorbing a neutron and breaking into Barium-141,  Krypton-92 and three neutrons

Explanation:

A fission reaction is said to have occurred when an unstable nucleus is bombarded with a neutron such that it disintegrates into daughter nuclei and produces more neutrons in the process. Hence, Uranium-235 absorbing a neutron and breaking into Barium-141,  Krypton-92 and three neutrons is a fission reaction.

This fission reaction is often a self sustaining reaction. The neutrons produced in the reaction bombards more of the parent nucleus and the process continues indefinitely(chain reaction).

Control rods and moderators are used to keep the chain reaction in check.

the role of the microscope world in creating new materials .