Radioactivity and Fission

What was Marie Curie's contribution to the field of radioactivity?

• Marie Curie was a famous painter

• Marie Curie discovered the cure for cancer

• Marie Curie discovered two radioactive elements, polonium and radium, and coined the term 'radioactivity'.

• Marie Curie invented the first radio

What is the process of nuclear fission?

• The process of nuclear fission is the conversion of nuclear energy into thermal energy.

• The process of nuclear fission is the splitting of an atom's nucleus into smaller nuclei.

• The process of nuclear fission is the release of electrons from an atom's nucleus.

• The process of nuclear fission is the combining of two atoms' nuclei into a larger nucleus.

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What are the uses of uranium and thorium?

• Uranium is used as a moderator in nuclear reactions. To controls the speed of the reactor. Thorium is used to make nuclear reactiion containers

• Uranium is used in the production of solar panels. Thorium is used as a preservative in food.

• Uranium is primarily used as fuel in nuclear power plants and in the production of nuclear weapons. Thorium is used as a fuel in some nuclear reactors and has potential as an alternative to uranium in nuclear power generation.

• Uranium is used in the manufacturing of batteries. Thorium is used as a pigment in paints.

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Neutrons released in a fission reaction can strike other nuclei and cause a 

• meltdown
• take down
• break down
• chain reaction

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What is emitted during Beta Radiation?

• Electron

• Protons

• Neutron

• Nuclei

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What is emitted during Gamma Radiation?

• Particles.

• Protons.

• Beta Rays.

• Gamma Rays.

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What is emitted during Alpha Radiation?

• A helium nuclei

• A hydrogen atom

• Gamma Rays

• Positrons

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During beta decay, a nucleus .... 

• gives up two protons and two neutrons.
•   maintains the same number of protons and neutrons.
• a proton is turned into a neutron . 

• a neutron is turned into a proton. 

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What type of decay is shown here

• alpha decay
• beta decay
• gamma decay

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An example of an uncontrolled fission reaction is _______________

• Nuclear power plants
• Radio active decay
• Atomic Bomb
• On the surface of the sun

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