answersLogoWhite

0


Best Answer

When excess electrons collide with other nuclei.

User Avatar

Cortez Stoltenberg

Lvl 10
2y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: A nuclear Chain reaction occurs when?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Chemistry

What type of reaction happens inside a nuclear plant?

A nuclear chain reaction nuclear fission


What is meant by chain reaction in nuclear reactor?

Basically a chain reaction (nuclear or chemical) is a self sustaining auto-catalytic reaction.In a nuclear reactor it is a neutron chain reaction, where each neutron released in every fission event can trigger another fission event. In a nuclear reactor the excess neutrons must be disposed of, which is the purpose of the control rods so that the reaction can be kept at some desired constant rate.


When a uranium nucleus breaks into fragments what type of nuclear reaction occurs?

In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei), often producing free neutrons and photons (in the form of gamma rays).


What is the krypton problem?

In nuclear reactors, krypton can absorb enough neutrons to slow or stop the chain reaction.


How can uranium 235 create electricity?

In physics and nuclear fission. A neutron is fired at a uranium-235 atom which then splits into daughter nuclei, the daughter nuclei releases more netrons which splits more and more uranium-235 atoms. This is called a chain reaction. The chain reaction releases heat which can then be used to turn a turbine which turns a generator and generates electricity. A moderator can be used to slow down neutrons and the chain reaction. When the neutrons are slowed down to the right speed, control/fuel rods absorbs the neutrons which slows down the reaction rate. This makes nuclear fission controllable, unlike nuclear fusion which is uncontrollable. Hope this helps

Related questions

What is the meaning of nuclear reactor?

It is a device where a controlled nuclear fission chain reaction occurs.


What is meant by nuclear reactor?

It is a device where a controlled nuclear fission chain reaction occurs.


A nuclear chain reaction occurs when excess collide with other nuclei?

Neutrons


A nuclear chain reaction occurs when excess?

When excess electrons collide with other nuclei.


What type of reaction happens inside a nuclear power plant?

A nuclear chain reaction nuclear fission


What particle is needed to begin nuclear chain reaction?

Neutron particle is needed to begin nuclear chain reaction.


What type of reaction happens inside a nuclear plant?

A nuclear chain reaction nuclear fission


What particles maintain a nuclear chain reaction?

In most cases neutrons are emitted and capable of maintaining a nuclear chain reaction


What specific nuclear fusion reaction occurs in the sun?

The proton-proton chain accounts for more than 98% of the fusion reactions in our Sun. The balance in the carbon-nitrogen-oxygen catalytic chain reaction.


What controls the chain reaction in a nuclear reaction?

moderator


What type of nuclear reaction occurs in nuclear weapons?

the nuclear kind


What particle is used to start nuclear fission?

In actuality, a spontaneous fission event begins a nuclear chain reaction. It kick starts a nuclear chain reaction. And a neutron from that fission will initiate another fission to continue and rev up that nuclear chain reaction.