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What is the Mass number of a Beta-particle ?

  1. 0
  2. 1
  3. 2
  4. 4

Answer (Detailed Solution Below)

Option 1 : 0

Detailed Solution

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The correct answer is Option(1).i.e.0. 

  • In Radioactivity, the Mass number of a Beta-particle is zero. 
  • Radioactivity: 
    • It is a phenomenon displayed by a few matters of throw down energy and subatomic particles correspondingly. 
    • Due to nuclear instability, radioactivity is formed in an atom. 
  • Three crucial forms of Radioactivity:
    • Gamma Decay-(Photons having high energy are throw down).
    • Beta Decay-(Discharge consists of Electrons).
    • Alpha Decay-(Discharge consists of a Helium nucleus). 
  • The following table shows the list of particles with their respective features. 
    Three forms of Radioactive Emissions
    Characteristics Alpha 
    Particles    		 Beta 
    Particles    		 Gamma 
    rays
    Symbols α, 4He2 β, 0e-1 γ
    Identity Helium Nucleus Electron Electromagnetic radiation
    Charge +2 -1 None
    Mass number 4 0 0
    Penetrating power

    Minimal(will not penetrate the skin)

    Short(will penetrate skin & some tissue slightly)

    Deep(will penetrate the tissue deeply)

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Exams Tests Super Practice

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