Nuclear Reactions

In which type of reaction do two lighter nuclei combine to form one heavier one?

• reduction

• nuclear fission

• nuclear fusion

• neutralization

In the reaction given in the picture, the "X" represents:

• an electron

• an alpha particle

• a neutron

• xenon

What happens to a thorium-230 nucleus when it experiences radioactive decay and emits alpha radiation?

• The overall energy will remain unchanged

• The mass number will decrease by 4

• The mass number will increase by 4

• The mass number will not change

Balance the reaction given in the picture

• 
• 
• 
• 

Nuclear fusion occurs -

• in nuclear power plants

• in stars

• in volcanos

• in car engines

Which reaction illustrates fusion?

• 
• 
• 
• 

Radioactivity results from the decay of unstable:

• electrons

• heavy nuclei

• stars

• noble gases

In the reaction illustrated, what does "X" represent?

• an alpha particle

• a proton

• a carbon atom

• a xenon atom

Choose the item that balances the equation given in the picture

• 
• 
• 
• 

What was the secret code name for the building of the first atomic bomb?

• Manhattan Project

• D-day

• 911

• Pearl Harbor