Which phrase describes a nuclear chain reaction?(1 point)

Responses

a reaction in which particles spontaneously emit radiation
a reaction in which particles spontaneously emit radiation

a series of reactions in which particles from one reaction trigger the next reaction
a series of reactions in which particles from one reaction trigger the next reaction

a type of reaction which only takes place in the sun and other stars
a type of reaction which only takes place in the sun and other stars

a reaction in which small nuclei combine into a larger nucleus

a series of reactions in which particles from one reaction trigger the next reaction

The phrase that describes a nuclear chain reaction is:

- a series of reactions in which particles from one reaction trigger the next reaction

The correct answer is:

a series of reactions in which particles from one reaction trigger the next reaction

To understand and determine the correct answer, it's important to read through all the options provided and analyze them. In this case, we are looking for the phrase that describes a nuclear chain reaction.

Option 1 states that it is a reaction in which particles spontaneously emit radiation. While this may occur during a nuclear chain reaction, it does not fully describe the process.

Option 2, "a series of reactions in which particles from one reaction trigger the next reaction," accurately captures the essence of a nuclear chain reaction. In this type of reaction, the particles released from one reaction serve as the triggers for subsequent reactions, creating a chain-like sequence.

Option 3 is incorrect, as a nuclear chain reaction can occur both in stars and artificially in nuclear reactors. It is not limited to the sun and other stars.

Option 4 refers to a different type of nuclear reaction called nuclear fusion, where small nuclei combine to form a larger nucleus. While related, this is not specifically describing a nuclear chain reaction.

Therefore, the correct option is:

a series of reactions in which particles from one reaction trigger the next reaction.