G12 T3 Selfassessment 6.1

10 Questions | Total Attempts: 143

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G12 T3 Selfassessment 6.1 - Quiz

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Questions and Answers
  • 1. 
    A radioactive nucleus contains 138 neutrons. The nucleus emits an α-particle.How many neutrons are in the nucleus after it has emitted the α-particle? 
  • 2. 
    An atom of the element lithium has a nucleon number of 7 and a proton number of 3.Which diagram represents a neutral atom of lithium? 
    • A. 

      Diagram A

    • B. 

      Diagram B

    • C. 

      Diagram C

    • D. 

      Diagram D

  • 3. 
    How many protons are there in a neutral atom of 
  • 4. 
    In the symbol below, A is the nucleon number and Z is the proton number.    What is represented by the symbol?
    • A. 

      An electron

    • B. 

      A neutron

    • C. 

      A nuclide

    • D. 

      An X-ray

  • 5. 
    The nucleus of a neutral atom of lithium is represented byHow many protons does the atom contain?
  • 6. 
    The nucleus of a neutral atom of lithium is represented byHow many neutrons does the atom contain?
  • 7. 
    The nucleus of a neutral atom of lithium is represented byHow many electrons does the atom contain?
  • 8. 
    How many nucleons are in a nucleus of ?
  • 9. 
    How many neutrons are in a nucleus of ?
  • 10. 
    How many electrons are in a nucleus of  if the charge of the atom is +1?