Question

the most common atom used in fission is
a uranium 232
b uranium 235
c uranium 238
in fission, a ______ is one where a neutron imbeds itself in the nucleus of a u - 235 atom causing it to break apart. after destructing, more neutrons are created. these neutrons can carry on the cycle by finding more u - 235, and, again, starting the fissioning process.
a chain reaction
b ground zero
______ are high energy particles which are used to create heat to produce electricity.
a alpha particles
b beta particles
c gamma waves

Explanation:

1. Uranium - 235 is the most common isotope used in nuclear fission due to its ability to sustain a chain - reaction. Uranium - 232 is not a common fissionable isotope and uranium - 238 is less likely to undergo fission compared to U - 235 under normal reactor conditions.
2. A chain - reaction in fission occurs when a neutron hits a U - 235 nucleus, causing it to split and release more neutrons which can continue the process. Ground zero refers to the location of an explosion, not a fission concept.
3. Gamma waves are high - energy electromagnetic waves used to create heat for electricity production in nuclear power plants. Alpha and beta particles are charged particles and not the main source for heat production in this context.

Answer:

1. B. uranium 235
2. A. chain reaction
3. C. Gamma waves