Anuclear chain reaction occurs when excess collide with other nuclei. select one:
a. neutrons
b. gamma rays
c. nuclei

The correct answer is letter a. neutrons. A nuclear chain reaction occurs when excess neutrons collide with other nuclei. Neutrons are subatomic particle. It has no net electric charge and a mass slightly larger than of a proton. It consists the nucleus of an atom.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.