Radioactive decay

What is emitted during Beta Radiation?

• A high-energy Electron.
• Protons.
• Neutrons.
• Nuclei

Uranium-238 decays into Thorium-234 by emitting .........

• an alpha particle

• a beta particle

• gamma rays

• visible light

A helium nucleus with two protons and two neutrons is called a(n) ____.  

• alpha particle
• electroscope
• beta particle
• gamma ray

Negatively charged particles emitted from a nucleus at a high speed are ____.

• alpha particle

• gamma rays

• beta particles

• positrons

Which is the most penetrating radiation?

• positron

• alpha

• beta

• gamma

What element does carbon-14 become after undergoing beta decay?
 

•  ₇N¹³ 
• ₅B¹⁴
• ₇N¹⁴ 
• ₆C¹⁴ 

What type of radioactive decay increases the atomic number of a radioactive atom?

• gamma

• beta

• alpha

• fusion

 For the following nuclear reaction, what was the beginning radionuclide (X)?
      X  →   ₈₆Rn²²² + ₂He⁴ 

• Radium-222
• Radon-222
• Radon-226
• Radium-226

What charge is alpha radiation?

• Negative

• Neutral

• Positive

Calculate the mass of a daughter atom after alpha decay of a parent atom with a mass of 100?

• 100

• 98

• 102

• 96