Radioactive Decay

What is the basis of nuclear reactions?

• The change in the number of protons and neutrons in the nucleus

• The swapping of electrons in compounds

• The release of radiation from atoms

• The transformation of one element into another

Which type of nuclear reaction can kick protons out of the nucleus?

• Gamma decay

• Beta decay

• None of the above

• Alpha decay

What is the name of the particle emitted during alpha decay?

• Neutron

• Proton

• Electron

• Alpha particle

Which type of nuclear decay involves a neutron changing into a proton?

• Alpha decay

• Beta decay

• Gamma decay

• None of the above

What type of decay releases radiation without changing the composition of the nucleus?

• Gamma decay

• Beta decay

• None of the above

• Alpha decay

Which type of nuclear radiation is being emitted here?

• Alpha

• beta

• gamma 

• none

Which symbol(s) represent gamma radiation?

• yellow

• blue

• red

Which type of radioactive decay does not change the atomic number or mass number of a nucleus?

• Alpha decay

• Beta decay

• Gamma decay

• Positron emission

Which of the following equations represents alpha decay, where a uranium-238 nucleus decays into thorium-234?

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time